2026-06-17T14:25:48.514+08:00 ERROR 1639164 --- [ection-pool-2-1] c.d.o.a.s.n.core.DefaultSessionPool : [DingTalk] establish connection failed, {}
com.dingtalk.open.app.stream.network.api.exception.DingTalkNetworkException: null
at com.dingtalk.open.app.stream.network.core.Connector.connect(Connector.java:42) ~[dingtalk-stream-1.3.12.jar!/:1.3.12]
at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:168) ~[dingtalk-stream-1.3.12.jar!/:1.3.12]
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:572) ~[na:na]
at java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:358) ~[na:na]
at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305) ~[na:na]
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144) ~[na:na]
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642) ~[na:na]
at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[dingtalk-stream-1.3.12.jar!/:1.3.12]
at java.base/java.lang.Thread.run(Thread.java:1583) ~[na:na]
2026-06-17T14:25:48.514+08:00 ERROR 1639164 --- [ection-pool-2-1] c.d.o.a.s.n.core.DefaultSessionPool : [DingTalk] establish connection failed, {}
com.dingtalk.open.app.stream.network.api.exception.DingTalkNetworkException: null
at com.dingtalk.open.app.stream.network.core.Connector.connect(Connector.java:42) ~[dingtalk-stream-1.3.12.jar!/:1.3.12]
at com.dingtalk.open.app.stream.network.core.DefaultSessionPool$ConnectionTask.run(DefaultSessionPool.java:168) ~[dingtalk-stream-1.3.12.jar!/:1.3.12]
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:572) ~[na:na]
at java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:358) ~[na:na]
at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305) ~[na:na]
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144) ~[na:na]
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642) ~[na:na]
at shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[dingtalk-stream-1.3.12.jar!/:1.3.12]
at java.base/java.lang.Thread.run(Thread.java:1583) ~[na:na]