2026-05-18 00:27:46 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:46 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:46 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:46 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:46 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:46 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:46 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:46 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:46 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:46 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:46 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:46 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:46 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:46 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:46 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:46 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:46 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:46 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 00:27:47 [connection-pool-2-1] ERROR c.d.o.a.s.n.core.DefaultSessionPool - [DingTalk] establish connection failed, {} java.net.UnknownHostException: api.dingtalk.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:293) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:465) at sun.net.www.http.HttpClient.openServer(HttpClient.java:560) at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:203) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1179) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1073) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:189) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:167) at com.dingtalk.open.app.api.open.HttpOpenApiClient.openConnection(HttpOpenApiClient.java:58) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.openConnection(OpenDingTalkStreamClient.java:84) at com.dingtalk.open.app.api.OpenDingTalkStreamClient.lambda$start$0(OpenDingTalkStreamClient.java:54) at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:159) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) 2026-05-18 09:09:18 [main] ERROR c.b.m.core.MybatisConfiguration - mapper[com.ruoyi.system.mapper.ProcessRouteMapper.existsByProcessNoAndMaterialCode] is ignored, because it exists, maybe from xml file 2026-05-18 09:12:40 [XNIO-1 task-2] ERROR c.r.f.w.e.GlobalExceptionHandler - 请求地址'/ding/callback/receive',不支持'HEAD'请求 2026-05-18 09:14:23 [XNIO-1 task-13] ERROR c.r.f.w.e.GlobalExceptionHandler - 请求地址'/ding/callback/receive',不支持'HEAD'请求