java


Java OPC UA org.eclipse.milo.examples.client.ClientExampleRunner error


I am communicating with OPC UA Server in java using org.eclipse.milo library. I am able to communicate with server and fetch the data. But in the log I am able to see below exception in between of communication with OPC UA Server.
I am using Quartz API too. Below is the exception
ERROR [org.eclipse.milo.examples.client.ClientExampleRunner] (null_Worker-86) Error running example: java.lang.IllegalStateException: executor not accepting a task: java.util.concurrent.ExecutionException: java.lang.IllegalStateException: executor not accepting a task
at java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:357)
at java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1895)
at org.eclipse.milo.examples.client.ClientExampleRunner.createClient(ClientExampleRunner.java:54)
at org.eclipse.milo.examples.client.ClientExampleRunner.run(ClientExampleRunner.java:93)
at com.winjit.scheduler.OpcClientScheduler.execute(OpcClientScheduler.java:44)
at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:573)
Caused by: java.lang.IllegalStateException: executor not accepting a task
at io.netty.resolver.AddressResolverGroup.getResolver(AddressResolverGroup.java:58)
at io.netty.bootstrap.Bootstrap.doResolveAndConnect0(Bootstrap.java:200)
at io.netty.bootstrap.Bootstrap.access$000(Bootstrap.java:49)
at io.netty.bootstrap.Bootstrap$1.operationComplete(Bootstrap.java:188)
at io.netty.bootstrap.Bootstrap$1.operationComplete(Bootstrap.java:174)
at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:514)
at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:488)
at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:427)
at io.netty.util.concurrent.DefaultPromise.trySuccess(DefaultPromise.java:111)
at io.netty.channel.DefaultChannelPromise.trySuccess(DefaultChannelPromise.java:82)
at io.netty.channel.AbstractChannel$AbstractUnsafe.safeSetSuccess(AbstractChannel.java:897)
at io.netty.channel.AbstractChannel$AbstractUnsafe.register0(AbstractChannel.java:508)
at io.netty.channel.AbstractChannel$AbstractUnsafe.access$200(AbstractChannel.java:419)
at io.netty.channel.AbstractChannel$AbstractUnsafe$1.run(AbstractChannel.java:478)
at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:163)
at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:418)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:454)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:873)
at java.lang.Thread.run(Thread.java:745)

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