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https://issues.apache.org/jira/browse/SSHD-19?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Shawn Pearce resolved SSHD-19.
------------------------------
Resolution: Fixed
Committing to https://svn.apache.org/repos/asf/mina/sshd/trunk ...
M
sshd-core/src/main/java/org/apache/sshd/server/channel/ChannelSession.java
Committed r1031886
> NullPointerException during SSHD data write
> -------------------------------------------
>
> Key: SSHD-19
> URL: https://issues.apache.org/jira/browse/SSHD-19
> Project: MINA SSHD
> Issue Type: Bug
> Reporter: Shawn Pearce
>
> I'm seeing occasional NullPointerException stack traces in my server logs.
> The following trace is from SVN tr...@755651. I haven't been able to
> reproduce it myself, nor can I figure out under what condition doWriteData is
> being invoked with shellIn uninitialized.
> java.lang.NullPointerException
> at
> org.apache.sshd.server.channel.ChannelSession.doWriteData(ChannelSession.java:155)
> at
> org.apache.sshd.common.channel.AbstractChannel.handleData(AbstractChannel.java:117)
> at
> org.apache.sshd.common.session.AbstractSession.channelData(AbstractSession.java:867)
> at
> org.apache.sshd.server.session.ServerSession.handleMessage(ServerSession.java:198)
> at
> org.apache.sshd.common.session.AbstractSession.decode(AbstractSession.java:494)
> at
> org.apache.sshd.common.session.AbstractSession.messageReceived(AbstractSession.java:218)
> at
> org.apache.sshd.common.AbstractSessionIoHandler.messageReceived(AbstractSessionIoHandler.java:59)
> at
> org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.messageReceived(DefaultIoFilterChain.java:722)
> at
> org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434)
> at
> org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:48)
> at
> org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:802)
> at
> org.apache.mina.core.filterchain.IoFilterAdapter.messageReceived(IoFilterAdapter.java:120)
> at
> org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434)
> at
> org.apache.mina.core.filterchain.DefaultIoFilterChain.fireMessageReceived(DefaultIoFilterChain.java:426)
> at
> org.apache.mina.core.polling.AbstractPollingIoProcessor.read(AbstractPollingIoProcessor.java:586)
> at
> org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:547)
> at
> org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:539)
> at
> org.apache.mina.core.polling.AbstractPollingIoProcessor.access$400(AbstractPollingIoProcessor.java:57)
> at
> org.apache.mina.core.polling.AbstractPollingIoProcessor$Processor.run(AbstractPollingIoProcessor.java:867)
> at
> org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:65)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> at java.lang.Thread.run(Thread.java:619)
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