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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 37264] New: - ServletContextListener cannot load classes
Date Thu, 27 Oct 2005 04:48:24 GMT
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http://issues.apache.org/bugzilla/show_bug.cgi?id=37264

           Summary: ServletContextListener cannot load classes
           Product: Tomcat 5
           Version: Nightly Build
          Platform: All
        OS/Version: other
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Catalina
        AssignedTo: tomcat-dev@jakarta.apache.org
        ReportedBy: bc4all@gmail.com


If a ServletContextListener implmentation references a class that is not yet 
loaded, the loading would with some ZipException.

This is caused by the fact that when a context is stopped, the classloader is 
unbound before the ServletContextListeners are called. The sequence of calls is 
something like this:

StandardContext.stop()
  lifecycle.fireLifecycleEvent(STOP_EVENT, null);
    NamingContextListener.lifecycleEvent();
      ContextBindings.unbindClassLoader()
  ...
  listenerStop(); // trouble

My solutions was to move listenerStop() before the call to fireLifecycleEvents()


I also filed bug 37262, about the datasources not being released when the 
context is stopped. These two are somehow related, I think the right sequence 
when stopping the context is:
1. call the listeners
2. release the datasources
3. unbind the classloader

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