[jboss-jira] [JBoss JIRA] Created: (JBAS-5675) InvokerAdaptorService: Non synchronized Map (remoteListeners) in addNotificationListener()

[martin walla (JIRA)]

InvokerAdaptorService: Non synchronized Map (remoteListeners) in addNotificationListener()
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                 Key: JBAS-5675
                 URL: http://jira.jboss.com/jira/browse/JBAS-5675
             Project: JBoss Application Server
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: JMX
    Affects Versions: JBossAS-4.0.4.GA, JBossAS-4.0.3 SP1
         Environment: JDK 1.5.0_04-b05, Sun Solaris 9
            Reporter: martin walla
         Assigned To: Dimitris Andreadis


org.jboss.jmx.connector.invoker.InvokerAdaptorService.java

If multiple Threads concurrently try to add a NotificationListener to the same MBean then a put to the HashMap "remoteListeners"
is done concurrently (unsynchronized).

This leads in some cases (e.g. HashMap has to grow) to endless loops of this threads and they are consuming CPU.

I know that the initial reason was a programming mistake on our side (missing removeNotificationListener() which causes the
growing of the HashMap) but nevertheless this is a bug in InvokerAdaptorService.java.

I required i can supply the stacktrace of a Thread dump.

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