[jira] [Created] (SSHD-743) Nio2Session sporadically leaks exceptions from nio2 threads

[masc (JIRA)]

masc created SSHD-743:
-------------------------

             Summary: Nio2Session sporadically leaks exceptions from nio2 
threads
                 Key: SSHD-743
                 URL: https://issues.apache.org/jira/browse/SSHD-743
             Project: MINA SSHD
          Issue Type: Bug
    Affects Versions: 1.4.0, 1.3.0
         Environment: Windows
            Reporter: masc
            Priority: Critical


We are using {{sshd-core}} for tcp forwarding/tunnelling.

Since updating to {{1.3.0}} we see sporadic process terminations causes by 
exceptions leaking from nio2 threads.

I had to downgrade to {{1.2.0}} to stabilise.

{code}
2017-04-21 18:56:28,606 1245641365 sshd-SshServer[4be7acd9]-nio2-thread-3 
org.apache.sshd.server.session.ServerSessionImpl WARN - 
exceptionCaught(ServerSessionImpl[leoz@/185.17.206.254:21464])[state=Opened] 
InterruptedByTimeoutException: null
2017-04-21 18:56:28,606 1245641365 sshd-SshServer[4be7acd9]-nio2-thread-3 
org.deku.leoz.node.Application ERROR - Writing not allowed due to timeout or 
cancellation
java.lang.IllegalStateException: Writing not allowed due to timeout or 
cancellation
    at 
sun.nio.ch.AsynchronousSocketChannelImpl.write(AsynchronousSocketChannelImpl.java:350)
    at 
sun.nio.ch.AsynchronousSocketChannelImpl.write(AsynchronousSocketChannelImpl.java:399)
    at 
org.apache.sshd.common.io.nio2.Nio2Session.doWriteCycle(Nio2Session.java:334)
    at 
org.apache.sshd.common.io.nio2.Nio2Session.startWriting(Nio2Session.java:318)
    at 
org.apache.sshd.common.io.nio2.Nio2Session.finishWrite(Nio2Session.java:393)
    at 
org.apache.sshd.common.io.nio2.Nio2Session.handleWriteCycleFailure(Nio2Session.java:387)
    at 
org.apache.sshd.common.io.nio2.Nio2Session$2.onFailed(Nio2Session.java:348)
    at 
org.apache.sshd.common.io.nio2.Nio2CompletionHandler.lambda$failed$1(Nio2CompletionHandler.java:46)
    at java.security.AccessController.doPrivileged(Native Method)
    at 
org.apache.sshd.common.io.nio2.Nio2CompletionHandler.failed(Nio2CompletionHandler.java:45)
    at sun.nio.ch.Invoker.invokeUnchecked(Invoker.java:128)
    at sun.nio.ch.Invoker$2.run(Invoker.java:218)
    at 
sun.nio.ch.AsynchronousChannelGroupImpl$1.run(AsynchronousChannelGroupImpl.java:112)
    at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
{code}




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