Exception on scripted input

[phemmer]

When sending scripted input, where the client shuts down immediately after sending the input, an exception is generated:

[20:21:45 WARN]: java.util.logging.ErrorManager: 2
[20:21:45 WARN]: org.apache.sshd.common.channel.exception.SshChannelClosedException: write(ChannelOutputStream[ChannelSession[id=2, recipient=4]-ServerSessionImpl[feystorm@/0:0:0:0:0:0:0:1:38962]] SSH_MSG_CHANNEL_DATA) len=94 - channel already closed
[20:21:45 WARN]: 	at org.apache.sshd.common.channel.ChannelOutputStream.write(ChannelOutputStream.java:110)
[20:21:45 WARN]: 	at sun.nio.cs.StreamEncoder.writeBytes(StreamEncoder.java:221)
[20:21:45 WARN]: 	at sun.nio.cs.StreamEncoder.implFlushBuffer(StreamEncoder.java:291)
[20:21:45 WARN]: 	at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:295)
[20:21:45 WARN]: 	at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141)
[20:21:45 WARN]: 	at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229)
[20:21:45 WARN]: 	at java.util.logging.StreamHandler.flush(StreamHandler.java:259)
[20:21:45 WARN]: 	at com.ryanmichela.sshd.FlushyStreamHandler.flush(FlushyStreamHandler.java:35)
[20:21:45 WARN]: 	at com.ryanmichela.sshd.FlushyStreamHandler.publish(FlushyStreamHandler.java:27)
[20:21:45 WARN]: 	at com.ryanmichela.sshd.StreamHandlerAppender.append(StreamHandlerAppender.java:45)
[20:21:45 WARN]: 	at org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:156)
[20:21:45 WARN]: 	at org.apache.logging.log4j.core.config.AppenderControl.callAppender0(AppenderControl.java:129)
[20:21:45 WARN]: 	at org.apache.logging.log4j.core.config.AppenderControl.callAppenderPreventRecursion(AppenderControl.java:120)
[20:21:45 WARN]: 	at org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:84)
[20:21:45 WARN]: 	at org.apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.java:448)
[20:21:45 WARN]: 	at org.apache.logging.log4j.core.config.LoggerConfig.processLogEvent(LoggerConfig.java:433)
[20:21:45 WARN]: 	at org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:417)
[20:21:45 WARN]: 	at org.apache.logging.log4j.core.config.AwaitCompletionReliabilityStrategy.log(AwaitCompletionReliabilityStrategy.java:79)
[20:21:45 WARN]: 	at org.apache.logging.log4j.core.async.AsyncLogger.actualAsyncLog(AsyncLogger.java:337)
[20:21:45 WARN]: 	at org.apache.logging.log4j.core.async.RingBufferLogEvent.execute(RingBufferLogEvent.java:161)
[20:21:45 WARN]: 	at org.apache.logging.log4j.core.async.RingBufferLogEventHandler.onEvent(RingBufferLogEventHandler.java:45)
[20:21:45 WARN]: 	at org.apache.logging.log4j.core.async.RingBufferLogEventHandler.onEvent(RingBufferLogEventHandler.java:29)
[20:21:45 WARN]: 	at com.lmax.disruptor.BatchEventProcessor.processEvents(BatchEventProcessor.java:168)
[20:21:45 WARN]: 	at com.lmax.disruptor.BatchEventProcessor.run(BatchEventProcessor.java:125)
[20:21:45 WARN]: 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
[20:21:45 WARN]: 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
[20:21:45 WARN]: 	at java.lang.Thread.run(Thread.java:748)

I'm guessing this is because it's trying to send a response but the client has already hung up.

You can reproduce with:

ssh -p 1234 user@host <<'EOF'
say hello
EOF