[jboss-jira] [JBoss JIRA] Resolved: (JGRP-540) Multiplexer: ordering issue

[Bela Ban (JIRA)]

     [ http://jira.jboss.com/jira/browse/JGRP-540?page=all ]

Bela Ban resolved JGRP-540.
---------------------------

    Resolution: Done
      Assignee: Bela Ban  (was: Vladimir Blagojevic)

The issue was that put() and done() would place elements on 'queue' concurrently, due to incorrect synchronization.
FIXED

> Multiplexer: ordering issue
> ---------------------------
>
>                 Key: JGRP-540
>                 URL: http://jira.jboss.com/jira/browse/JGRP-540
>             Project: JGroups
>          Issue Type: Bug
>            Reporter: Bela Ban
>         Assigned To: Bela Ban
>             Fix For: 2.5
>
>
> Sometimes messages from the same sender are not delivered in the correct order, the test that shows this (happens infrequently) is MultiplexerTest.testOrdering(). 
> When disabling the Multiplexer thread pool (-Djgroups.mux.enabled=false), everything works fine, so I suspect this is a thread pool issue in the Multiplexer (FIFOMessageQueue).

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