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https://issues.apache.org/jira/browse/SSHD-1065?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17200335#comment-17200335
 ] 

min yun law commented on SSHD-1065:
-----------------------------------

I also sometime see such error as:
 Exception in thread "Thread-37" java.lang.IllegalStateException: Executor has 
been shut downException in thread "Thread-37" java.lang.IllegalStateException: 
Executor has been shut down at 
org.apache.sshd.common.util.ValidateUtils.createFormattedException(ValidateUtils.java:213)
 at 
org.apache.sshd.common.util.ValidateUtils.throwIllegalStateException(ValidateUtils.java:207)
 at 
org.apache.sshd.common.util.ValidateUtils.checkState(ValidateUtils.java:184) at 
org.apache.sshd.common.util.threads.NoCloseExecutor.execute(NoCloseExecutor.java:100)
 at 
sun.nio.ch.AsynchronousChannelGroupImpl.executeOnPooledThread(AsynchronousChannelGroupImpl.java:188)
 at sun.nio.ch.Invoker.invokeIndirectly(Invoker.java:212) at 
sun.nio.ch.UnixAsynchronousSocketChannelImpl.finishRead(UnixAsynchronousSocketChannelImpl.java:432)
 at 
sun.nio.ch.UnixAsynchronousSocketChannelImpl.finish(UnixAsynchronousSocketChannelImpl.java:191)
 at 
sun.nio.ch.UnixAsynchronousSocketChannelImpl.onEvent(UnixAsynchronousSocketChannelImpl.java:213)
 at sun.nio.ch.EPollPort$EventHandlerTask.run(EPollPort.java:293) at 
java.lang.Thread.run(Thread.java:748)

 

While my project still continue running.

 

> Sporadical "Executor has been shut down" exceptions displayed
> -------------------------------------------------------------
>
>                 Key: SSHD-1065
>                 URL: https://issues.apache.org/jira/browse/SSHD-1065
>             Project: MINA SSHD
>          Issue Type: Bug
>    Affects Versions: 2.5.1
>            Reporter: Björn Kautler
>            Priority: Minor
>
> I'm doing this:
> {code:java}
> SshClient.setUpDefaultSimpleClient().use { ssh ->
>    ssh.sessionLogin("server.company.com", "user", "p@ssw0rd").use { session ->
>       println(session.executeRemoteCommand("id"))
>       println(session.executeRemoteCommand("ps aux"))
>    }
> } {code}
> (The {{use}} is basically Kotlin sugar for {{try-with-resources}})
> This works fine, but sporadically this or similar is displayed, not 
> disturbing project flow:
> {code:java}
> Exception in thread "Thread-67" java.lang.IllegalStateException: Executor has 
> been shut down
>         at 
> org.apache.sshd.common.util.ValidateUtils.createFormattedException(ValidateUtils.java:213)
>         at 
> org.apache.sshd.common.util.ValidateUtils.throwIllegalStateException(ValidateUtils.java:207)
>         at 
> org.apache.sshd.common.util.ValidateUtils.checkState(ValidateUtils.java:184)
>         at 
> org.apache.sshd.common.util.threads.NoCloseExecutor.execute(NoCloseExecutor.java:100)
>         at 
> java.base/sun.nio.ch.AsynchronousChannelGroupImpl.executeOnPooledThread(AsynchronousChannelGroupImpl.java:188)
>         at java.base/sun.nio.ch.Invoker.invokeIndirectly(Invoker.java:213)
>         at java.base/sun.nio.ch.Invoker.invoke(Invoker.java:189)
>         at java.base/sun.nio.ch.Invoker.invoke(Invoker.java:298)
>         at 
> java.base/sun.nio.ch.WindowsAsynchronousSocketChannelImpl$ReadTask.failed(WindowsAsynchronousSocketChannelImpl.java:602)
>         at java.base/sun.nio.ch.Iocp$EventHandlerTask.run(Iocp.java:389)
>         at java.base/java.lang.Thread.run(Thread.java:834) {code}



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