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Posted to dev@mina.apache.org by "Thomas Wolf (Jira)" <ji...@apache.org> on 2022/04/05 18:42:00 UTC
[jira] [Resolved] (SSHD-1257) Shell is not getting closed if the command has already closed the OutputStream it is using.
[ https://issues.apache.org/jira/browse/SSHD-1257?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Thomas Wolf resolved SSHD-1257.
-------------------------------
Fix Version/s: 2.9.0
Assignee: Thomas Wolf
Resolution: Fixed
Squash-merged as commit dc229b9f.
Thank you, Vincent!
> Shell is not getting closed if the command has already closed the OutputStream it is using.
> -------------------------------------------------------------------------------------------
>
> Key: SSHD-1257
> URL: https://issues.apache.org/jira/browse/SSHD-1257
> Project: MINA SSHD
> Issue Type: Bug
> Affects Versions: 2.9.0
> Reporter: Vincent Latombe
> Assignee: Thomas Wolf
> Priority: Major
> Fix For: 2.9.0
>
> Time Spent: 2h 20m
> Remaining Estimate: 0h
>
> When running a org.apache.sshd.server.command.Command, if it happens to close the OutputStream instance it is using, then later when the ssh session closes, it attempts to flush the output stream before closing it.
> This causes the following warning to be printed on server side
> {code:java}
> WARNING o.a.s.s.channel.ChannelSession#lambda$prepareCommand$0: onExit(ChannelSession[id=0, recipient=0]-ServerSessionImpl[admin@/0:0:0:0:0:0:0:1:49944]) code=0 message='' SshChannelClosedException closing shell: flush(ChannelOutputStream[ChannelSession[id=0, recipient=0]-ServerSessionImpl[admin@/0:0:0:0:0:0:0:1:49944]] SSH_MSG_CHANNEL_DATA) length=0 - stream is already closed
> {code}
> and EOF is never sent to client.
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