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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=10967 Java Deadlock in WebappClassLoader Summary: Java Deadlock in WebappClassLoader Product: Tomcat 4 Version: 4.1.7 Platform: PC OS/Version: Windows NT/2K Status: NEW Severity: Critical Priority: Other Component: Catalina AssignedTo: [EMAIL PROTECTED] ReportedBy: [EMAIL PROTECTED] FOUND A JAVA LEVEL DEADLOCK: ---------------------------- "Thread-9": waiting to lock monitor 0x80231c (object 0x2a04e20, a org.apache.catalina.loader.WebappClassLoader$ResourceEntry), which is locked by "task" "task": waiting to lock monitor 0x8022bc (object 0x2d92dd8, a org.apache.catalina.loader.WebappClassLoader), which is locked by "Thread-9" JAVA STACK INFORMATION FOR THREADS LISTED ABOVE: ------------------------------------------------ Java Stack for "Thread-9": ========== at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1660) - waiting to lock <2a04e20> (a org.apache.catalina.loader.WebappClassLoader$ResourceEntry) at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:953) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1390) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1270) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:310) - locked <2d92dd8> (a org.apache.catalina.loader.WebappClassLoader) at java.lang.ClassLoader.defineClass0(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:488) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:106) at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1661) - locked <2a04e60> (a org.apache.catalina.loader.WebappClassLoader$ResourceEntry) at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:953) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1390) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1270) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:310) - locked <2d92dd8> (a org.apache.catalina.loader.WebappClassLoader) at net.jini.lookup.ServiceDiscoveryManager$LookupCacheImpl.<init>(ServiceDiscoveryManager.java:670) at net.jini.lookup.ServiceDiscoveryManager.createLookupCache(ServiceDiscoveryManager.java:2169) at net.jini.lookup.ServiceDiscoveryManager.createLookupCache(ServiceDiscoveryManager.java:1732) at com.eTapestry.services.ServiceLocator.lookup(ServiceLocator.java:124) at com.eTapestry.services.ServiceLocator.lookup(ServiceLocator.java:76) at com.eTapestry.services.ServiceLocator.lookup(ServiceLocator.java:62) at com.eTapestry.presentation.filters.AuthenticationFilter.validateSignOn(AuthenticationFilter.java:125) at com.eTapestry.presentation.filters.AuthenticationFilter.doFilter(AuthenticationFilter.java:74) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213) at org.apache.catalina.core.ApplicationFilterChain.access$0(ApplicationFilterChain.java:197) at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:176) at java.security.AccessController.doPrivileged(Native Method) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:172) at com.eTapestry.servlet.RequestLogFilter.doFilter(RequestLogFilter.java:73) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213) at org.apache.catalina.core.ApplicationFilterChain.access$0(ApplicationFilterChain.java:197) at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:176) at java.security.AccessController.doPrivileged(Native Method) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:172) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:260) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2350) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643) at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:171) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:405) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:380) at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:508) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:533) at java.lang.Thread.run(Thread.java:479) Java Stack for "task": ========== at java.lang.ClassLoader.checkCerts(ClassLoader.java:530) - waiting to lock <2d92dd8> (a org.apache.catalina.loader.WebappClassLoader) at java.lang.ClassLoader.defineClass(ClassLoader.java:482) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:106) at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1661) - locked <2a04e20> (a org.apache.catalina.loader.WebappClassLoader$ResourceEntry) at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:953) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1390) at java.lang.ClassLoader.loadClass(ClassLoader.java:287) at java.lang.ClassLoader.loadClass(ClassLoader.java:250) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:310) - locked <331dc08> (a sun.rmi.server.LoaderHandler$Loader) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:115) at com.sun.jini.reggie.RegistrarImpl_Stub.class$(Unknown Source) at com.sun.jini.reggie.RegistrarImpl_Stub.<clinit>(Unknown Source) at java.lang.reflect.Field.getLong(Native Method) at java.io.ObjectStreamClass$2.run(ObjectStreamClass.java:410) at java.security.AccessController.doPrivileged(Native Method) at java.io.ObjectStreamClass.init(ObjectStreamClass.java:396) - locked <3318c08> (a java.lang.Object) at java.io.ObjectStreamClass.lookupInternal(ObjectStreamClass.java:107) at java.io.ObjectStreamClass.setClass(ObjectStreamClass.java:561) at java.io.ObjectInputStream.inputClassDescriptor(ObjectInputStream.java:931) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:361) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:231) at java.io.ObjectInputStream.inputObject(ObjectInputStream.java:1181) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:381) at java.io.ObjectInputStream.inputClassFields(ObjectInputStream.java:2258) at java.io.ObjectInputStream.defaultReadObject(ObjectInputStream.java:514) at java.io.ObjectInputStream.inputObject(ObjectInputStream.java:1407) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:381) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:231) at java.rmi.MarshalledObject.get(MarshalledObject.java:133) at net.jini.discovery.IncomingUnicastResponse.<init>(IncomingUnicastResponse.java:72) at net.jini.discovery.LookupDiscovery$UnicastDiscoveryTask.run(LookupDiscovery.java:712) at com.sun.jini.thread.TaskManager$TaskThread.run(TaskManager.java:271) Found 1 deadlock. -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
