[SSHD-1065] Sporadical "Executor has been shut down" exceptions displayed

• Type: Bug
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 2.5.1
• Labels: user-confirmation-required user-response-required
• Assignee: Unassigned
• Reporter: Björn Kautler
• Created: 27/Aug/20 13:02
• Updated: 28/Jul/21 12:24

Description

I'm doing this:

SshClient.setUpDefaultSimpleClient().use { ssh ->
   ssh.sessionLogin("server.company.com", "user", "p@ssw0rd").use { session ->
      println(session.executeRemoteCommand("id"))
      println(session.executeRemoteCommand("ps aux"))
   }
} 

(The use is basically Kotlin sugar for try-with-resources)

This works fine, but sporadically this or similar is displayed, not disturbing project flow:

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)