Parallel deployment and failed to stop a thread.

[Bjørn T Johansen <bt...@havleik.no>]

I am trying out parallell deployment but there seems to be a memory leak? when undeploying the old version.. I get the following message in the log..:

org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [##000002] appears to have started a thread named [Mojarra-WebResourceMonitor-1-thread-1] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 sun.misc.Unsafe.park(Native Method)
 java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
 java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
 java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1067)
 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1127)
 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
 java.lang.Thread.run(Thread.java:745)

Is this a problem with Tomcat 8.0.14 or JSF 2.2.8?
What can I do to prevent this?


Regards,

BTJ

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Bjørn T Johansen

btj@havleik.no
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RE: Parallel deployment and failed to stop a thread.

["Caldarale, Charles R" <Ch...@unisys.com>]

> From: Bjørn T Johansen [mailto:btj@havleik.no] 
> Subject: Parallel deployment and failed to stop a thread.

> The web application [##000002] appears to have started a thread named 
> [Mojarra-WebResourceMonitor-1-thread-1] but has failed to stop it.

> Is this a problem with Tomcat 8.0.14 or JSF 2.2.8?

No, it's a problem with your web application, as the message states.

> What can I do to prevent this?

Fix your webapp to stop any and all threads it creates.  Given that the thread is from Mojarra, you will likely have to consult their documentation to determine how to properly shut down the monitor.

 - Chuck


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