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https://issues.apache.org/jira/browse/SSHD-1064?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17184084#comment-17184084
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Lyor Goldstein commented on SSHD-1064:
--------------------------------------
{quote}
This is supposed to work, isn't it?
{quote}
It's not a yes/no question - actually, it depends on the SSH server. The
exception you are getting is due to the fact that the SSH server did not return
an exit status code
{code:java}
/**
* @return The signaled exit status via "exit-status" request -
{@code null} if not signaled
*/
Integer getExitStatus();
{code}
Signalling an exit status is optional according to the standard, so the SSH
server is not violating it by not sending it. Why it does not return such a
status for the "ps aux" command is not in the scope of this project. You chose
to use the simple client - which is aptly named so - it assumes some "default"
behavior - which in this case does not apply. You can achieve what you want by
using the full-blown code and decide how to handle the lack of an exit status
yourself.
> Mutliple commands in one session do not work
> ---------------------------------------------
>
> Key: SSHD-1064
> URL: https://issues.apache.org/jira/browse/SSHD-1064
> Project: MINA SSHD
> Issue Type: Bug
> Affects Versions: 2.5.1
> Reporter: Björn Kautler
> Priority: Minor
>
> I tried to do this:
> {code:java}
> SshClient.setUpDefaultSimpleClient().use { ssh ->
> ssh.sessionLogin("server.company.com", "user", "p@ssw0rd").use { session ->
> println(session.executeRemoteCommand("id"))
> println(session.executeRemoteCommand("ps aux"))
> }
> }
> {code}
> (If you are not familiar with the syntax, it is Kotlin. The {{use}} works
> like a try-with-resources, I think the rest should be pretty obvious)
> This is supposed to work, isn't it?
> Yet it does not work.
> The first command works fine and then for the second command I get
> {{java.rmi.RemoteException: No exit status returned for command=ps aux}}.
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