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From "David Liu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CXF-3614) Thread leak in WorkQueueManagerImpl and AutomaticWorkQueueImpl when we use it in tomcat
Date Thu, 23 Jun 2011 10:10:47 GMT
Thread leak in WorkQueueManagerImpl and AutomaticWorkQueueImpl when we use it in tomcat
---------------------------------------------------------------------------------------

                 Key: CXF-3614
                 URL: https://issues.apache.org/jira/browse/CXF-3614
             Project: CXF
          Issue Type: Bug
          Components: Core
    Affects Versions: 2.4.1
            Reporter: David Liu


Hi,

  There is the threadleak in WorkQueueManagerImpl / AutomaticWorkQueueImpl when we use it
in tomcat or other web container. In AutomaticWorkQueueImpl created by WorkQueueManagerImpl,
it has a class WatchDog which is a daemon thread, If we call shutdown in WorkQueueManagerImpl,
it only clean the queue in AutomaticWorkQueueImpl but it won't notify WatchDog thread, so
the WatchDog will wait and live until we exit JVM.
  It won't cause issue if we run CXF as standalone app, however, it will cause thread leak
in tomcat because we do not stop tomcat when we undeploy cxf web-app, so we cannot destroy
WatchDog thread in this case.

  Could you please fix it? thanks.

{code}
public class MyWorkQueueManagerImpl extends WorkQueueManagerImpl implements DisposableBean
{

    @Override
    public void destroy() throws Exception {
        this.shutdown(false);
        for (AutomaticWorkQueue queue : namedQueues.values()) {
            if (queue instanceof AutomaticWorkQueueImpl) {
                AutomaticWorkQueueImpl queueimpl = ((AutomaticWorkQueueImpl) queue);
                queueimpl.terminated();
                queueimpl.watchDog.interrupt();
            }
        }
    }
}
{code}

David

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