[ http://jira.jboss.com/jira/browse/JBJMX-54?page=history ]
Scott M Stark closed JBJMX-54:
------------------------------
Resolution: Won't Fix
The issue is due to classes outside of the deployment holding onto the
destroyed class loader.
> NullPointerException in LoadMgr3
> --------------------------------
>
> Key: JBJMX-54
> URL: http://jira.jboss.com/jira/browse/JBJMX-54
> Project: JBoss JMX
> Type: Bug
> Reporter: SourceForge User
> Assignee: Scott M Stark
>
>
> SourceForge Submitter: javajedi .
> I get this error out of JBoss 3.2.2 on a fairly regular
> basis. I'm still not sure exactly how to reproduce it,
> but since it's an NPE, I'm hoping that someone can
> track down what would cause it to happen fairly easily.
> Once it occurs for a particular class, the only fix is
> to restart JBoss. I never had this problem on 3.2.0.
> java.lang.NullPointerException at
> org.jboss.mx.loading.LoadMgr3.beginLoadTask(LoadMgr3.java:119)
> at
> org.jboss.mx.loading.UnifiedClassLoader3.loadClassImpl(UnifiedClassLoader3.java:169)
> at
> org.jboss.mx.loading.UnifiedClassLoader3.loadClass(UnifiedClassLoader3.java:123)
> at
> java.lang.ClassLoader.loadClass(ClassLoader.java:235)
> at
> java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302)
> Looking at the code, the UnifiedLoaderRepository3 that
> is passed into beginLoadTask as the 2nd parameter must
> be null. UnifiedClassLoader3, line 118 does a null
> check for repository just a few lines before calling
> loadClassImpl, so I'm assuming that this is a valid
> state for the class loader to be in. That would mean
> that beginLoadTask in LoadMgr3 needs to handle the
> situation where repository is null.
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