[jboss-jira] [JBoss JIRA] (WFLY-9073) Thread Leak in jboss-client on JMX remoting authentication failure

[Piotr Krokowski (JIRA)]

    [ https://issues.jboss.org/browse/WFLY-9073?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13434183#comment-13434183 ] 

Piotr Krokowski commented on WFLY-9073:
---------------------------------------

Every connection attempt adds a few another threads, that are never stopped.
After some time the JVM hangs. Thread dump shows enormous number of threads in RUNNING and (if I remember correctly) WAITING state.
That I'd consider a leak.

> Thread Leak in jboss-client on JMX remoting authentication failure
> ------------------------------------------------------------------
>
>                 Key: WFLY-9073
>                 URL: https://issues.jboss.org/browse/WFLY-9073
>             Project: WildFly
>          Issue Type: Bug
>          Components: Application Client, JMX
>    Affects Versions: 10.1.0.Final
>            Reporter: Piotr Krokowski
>            Assignee: Stuart Douglas
>         Attachments: JbossClientThreadLeakDemo.java
>
>
> I've observed, that authentication failure, while connecting with jboss-client implementation of JMX remoting (remote+http) causes a thread leak. 
> Please find the attached code snippet to reproduce the faulty behavior.
> The attached code produces following output in my case :
> Thread count before starting:  2
> Active threads AFTER start: 2
> Connection failed.
> Active threads AFTER after success: 7
> Connection failed.
> Active threads AFTER after failure: 12
> Possible cause.
> After an initial analisys I've observed that RemotingConnector.internalConnect throws an Exception, while having state set to UNUSED, while I'd actually expect it being set to OPEN, as connection and endpoint fields are already initialized.



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