[jira] [Created] (SSHD-734) When ClientSessionImpl construction fails, AbstractSessionIoHandler#exceptionCaught may throw NPE

[Grzegorz Grzybek (JIRA)]

Grzegorz Grzybek created SSHD-734:
-------------------------------------

             Summary: When ClientSessionImpl construction fails, 
AbstractSessionIoHandler#exceptionCaught may throw NPE
                 Key: SSHD-734
                 URL: https://issues.apache.org/jira/browse/SSHD-734
             Project: MINA SSHD
          Issue Type: Bug
            Reporter: Grzegorz Grzybek


# {{org.apache.sshd.common.session.helpers.AbstractSession#sendKexInit()}} is 
called in {{ClientSessionImpl}} constructor
# {{org.apache.sshd.common.io.IoSession#write}} is called
# async write is done with handler created by 
{{org.apache.sshd.common.io.nio2.Nio2Session#createWriteCycleCompletionHandler()}}
# if e.g., {{sun.nio.ch.UnixAsynchronousSocketChannelImpl#implWrite()}} fails, 
it calls {{org.apache.sshd.common.io.nio2.Nio2CompletionHandler#onFailed()}}
# {{org.apache.sshd.common.io.nio2.Nio2Session#exceptionCaught()}} calls 
{{org.apache.sshd.common.io.IoHandler#exceptionCaught()}}
# 
{{org.apache.sshd.common.session.helpers.AbstractSessionIoHandler#exceptionCaught()}}
 can't find session in {{AbstractSession.getSession(ioSession, true)}}
# it throws {{throw new IllegalStateException("No session available", cause)}}



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