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http://issues.apache.org/bugzilla/show_bug.cgi?id=44059

           Summary: Hung thread
           Product: Lenya
           Version: Trunk
          Platform: Other
        OS/Version: other
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Miscellaneous
        AssignedTo: [email protected]
        ReportedBy: [EMAIL PROTECTED]


I have a thread that is hung and is taking up 100% of one of my CPUs. I'm
running Java 1.6.0.3. Since it is blocked in HashMap, which is not synchronized,
it doesn't appear to be an issue with our code. jconsole can't detect any
deadlocks. I assume it is this thread as the ThreadUserTime is massive,
359,995,020,000,000, compared to other SocketListener's.

Here is the stack trace:

Name: SocketListener0-12
State: RUNNABLE
Total blocked: 15  Total waited: 127

Stack trace: 
java.util.HashMap.get(HashMap.java:303)
org.apache.lenya.transaction.IdentityMapImpl.get(IdentityMapImpl.java:54)
org.apache.lenya.cms.repository.SharedItemStoreImpl.getRepositoryItem(SharedItemStoreImpl.java:65)
org.apache.lenya.cms.publication.DocumentFactoryImpl.get(DocumentFactoryImpl.java:91)
org.apache.lenya.cms.publication.DocumentFactoryImpl.get(DocumentFactoryImpl.java:73)
org.apache.lenya.cms.site.AbstractLink.getDocument(AbstractLink.java:107)
org.apache.lenya.cms.site.tree2.SiteTreeImpl.getKey(SiteTreeImpl.java:304)
org.apache.lenya.cms.site.tree2.SiteTreeImpl.linkAdded(SiteTreeImpl.java:300)
org.apache.lenya.cms.site.tree2.TreeNodeImpl.addLinkInternal(TreeNodeImpl.java:211)
org.apache.lenya.cms.site.tree2.TreeNodeImpl.addLink(TreeNodeImpl.java:197)
org.apache.lenya.cms.site.tree2.SiteTreeImpl.loadLinks(SiteTreeImpl.java:168)
org.apache.lenya.cms.site.tree2.SiteTreeImpl.loadNodes(SiteTreeImpl.java:158)
org.apache.lenya.cms.site.tree2.SiteTreeImpl.loadNodes(SiteTreeImpl.java:159)
org.apache.lenya.cms.site.tree2.SiteTreeImpl.load(SiteTreeImpl.java:115)
   - locked [EMAIL PROTECTED]
org.apache.lenya.cms.site.tree2.SiteTreeImpl.contains(SiteTreeImpl.java:334)
org.apache.lenya.cms.site.tree2.DelegatingSiteTree.contains(DelegatingSiteTree.java:79)
org.apache.lenya.cms.publication.DefaultDocumentBuilder.isDocument(DefaultDocumentBuilder.java:111)
sun.reflect.GeneratedMethodAccessor52.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:597)
org.apache.avalon.excalibur.component.ComponentProxyGenerator$ComponentInvocationHandler.invoke(ComponentProxyGenerator.java:143)
$Proxy33.isDocument(Unknown Source)
org.apache.lenya.cms.publication.DocumentFactoryImpl.isDocument(DocumentFactoryImpl.java:189)
org.apache.lenya.cms.ac.DocumentPolicyManagerWrapper.getPolicyUrlCorrect(DocumentPolicyManagerWrapper.java:119)
org.apache.lenya.cms.ac.DocumentPolicyManagerWrapper.getPolicyURL(DocumentPolicyManagerWrapper.java:80)
org.apache.lenya.cms.ac.DocumentPolicyManagerWrapper.getPolicy(DocumentPolicyManagerWrapper.java:240)
org.apache.lenya.cms.cocoon.acting.SslRedirectAction.act(SslRedirectAction.java:75)
org.apache.cocoon.components.treeprocessor.sitemap.ActTypeNode.invoke(ActTypeNode.java:125)
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:47)
org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:108)
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:69)
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:143)
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:69)
org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:93)
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:235)
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:177)
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:254)
org.apache.cocoon.Cocoon.process(Cocoon.java:699)
org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:1154)
javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:427)
org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:475)
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:567)
org.mortbay.http.HttpContext.handle(HttpContext.java:1565)
org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:635)
org.mortbay.http.HttpContext.handle(HttpContext.java:1517)
org.mortbay.jetty.plus.PlusWebAppContext.handle(PlusWebAppContext.java:158)
org.mortbay.http.HttpServer.service(HttpServer.java:954)
org.mortbay.http.HttpConnection.service(HttpConnection.java:814)
org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:981)
org.mortbay.http.HttpConnection.handle(HttpConnection.java:831)
org.mortbay.http.SocketListener.handleConnection(SocketListener.java:244)
org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:357)
org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:534)

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