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From "Jarek Gawor" <jga...@gmail.com>
Subject jetty assembly deadlock (trunk only)
Date Thu, 10 Jul 2008 14:48:36 GMT
It seems that once per day one of the automatic trunk builds deadlocks
in the following way (this only happens with the Jetty assembly):

Is anybody else seeing this too? We've had similar problems like this before...

Found one Java-level deadlock:
=============================
"RMI TCP Connection(4)-9.42.75.229":
  waiting to lock monitor 0x0808c7fc (object 0xd1418d38, a
org.apache.geronimo.kernel.config.MultiParentClassLoader),
  which is held by "main"
"main":
  waiting to lock monitor 0x0808c83c (object 0xd16967d8, a
org.apache.geronimo.kernel.config.MultiParentClassLoader),
  which is held by "RMI TCP Connection(4)-9.42.75.229"

Java stack information for the threads listed above:
===================================================
"RMI TCP Connection(4)-9.42.75.229":
        at org.apache.geronimo.kernel.config.MultiParentClassLoader.loadClassInternal(MultiParentClassLoader.java:449)
        - waiting to lock <0xd1418d38> (a
org.apache.geronimo.kernel.config.MultiParentClassLoader)
        at org.apache.geronimo.kernel.config.MultiParentClassLoader.checkParents(MultiParentClassLoader.java:501)
        - locked <0xd169c118> (a
org.apache.geronimo.kernel.config.MultiParentClassLoader)
        at org.apache.geronimo.kernel.config.MultiParentClassLoader.loadClassInternal(MultiParentClassLoader.java:459)
        - locked <0xd169c118> (a
org.apache.geronimo.kernel.config.MultiParentClassLoader)
        at org.apache.geronimo.kernel.config.MultiParentClassLoader.checkParents(MultiParentClassLoader.java:501)
        - locked <0xd16967d8> (a
org.apache.geronimo.kernel.config.MultiParentClassLoader)
        at org.apache.geronimo.kernel.config.MultiParentClassLoader.loadClassInternal(MultiParentClassLoader.java:459)
        - locked <0xd16967d8> (a
org.apache.geronimo.kernel.config.MultiParentClassLoader)
        at org.apache.geronimo.kernel.config.MultiParentClassLoader.checkParents(MultiParentClassLoader.java:501)
        - locked <0xd1530c78> (a
org.apache.geronimo.kernel.config.MultiParentClassLoader)
        at org.apache.geronimo.kernel.config.MultiParentClassLoader.loadOptimizedClass(MultiParentClassLoader.java:410)
        - locked <0xd1530c78> (a
org.apache.geronimo.kernel.config.MultiParentClassLoader)
        at org.apache.geronimo.kernel.config.MultiParentClassLoader.loadClass(MultiParentClassLoader.java:281)
        - locked <0xd1530c78> (a
org.apache.geronimo.kernel.config.MultiParentClassLoader)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
        - locked <0xd1530c78> (a
org.apache.geronimo.kernel.config.MultiParentClassLoader)
        at org.apache.geronimo.jmxremoting.Authenticator.authenticate(Authenticator.java:62)
        at javax.management.remote.rmi.RMIServerImpl.doNewClient(RMIServerImpl.java:214)
        at javax.management.remote.rmi.RMIServerImpl.newClient(RMIServerImpl.java:181)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:294)
        at sun.rmi.transport.Transport$1.run(Transport.java:153)
        at java.security.AccessController.doPrivileged(Native Method)
        at sun.rmi.transport.Transport.serviceCall(Transport.java:149)
        at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:466)
        at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:707)
        at java.lang.Thread.run(Thread.java:595)
"main":
        at org.apache.geronimo.kernel.config.MultiParentClassLoader.loadClassInternal(MultiParentClassLoader.java:449)
        - waiting to lock <0xd16967d8> (a
org.apache.geronimo.kernel.config.MultiParentClassLoader)
        at org.apache.geronimo.kernel.config.MultiParentClassLoader.checkParents(MultiParentClassLoader.java:501)
        - locked <0xd16aaa28> (a
org.apache.geronimo.kernel.config.MultiParentClassLoader)
        at org.apache.geronimo.kernel.config.MultiParentClassLoader.loadClassInternal(MultiParentClassLoader.java:459)
        - locked <0xd16aaa28> (a
org.apache.geronimo.kernel.config.MultiParentClassLoader)
        at org.apache.geronimo.kernel.config.MultiParentClassLoader.checkParents(MultiParentClassLoader.java:501)
        - locked <0xd16a1348> (a
org.apache.geronimo.kernel.config.MultiParentClassLoader)
        at org.apache.geronimo.kernel.config.MultiParentClassLoader.loadOptimizedClass(MultiParentClassLoader.java:410)
        - locked <0xd16a1348> (a
org.apache.geronimo.kernel.config.MultiParentClassLoader)
        at org.apache.geronimo.kernel.config.MultiParentClassLoader.loadClass(MultiParentClassLoader.java:281)
        - locked <0xd16a1348> (a
org.apache.geronimo.kernel.config.MultiParentClassLoader)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
        - locked <0xd16a1348> (a
org.apache.geronimo.kernel.config.MultiParentClassLoader)
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
        at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
        at org.apache.geronimo.kernel.config.MultiParentClassLoader.loadOptimizedClass(MultiParentClassLoader.java:425)
        - locked <0xd16a1348> (a
org.apache.geronimo.kernel.config.MultiParentClassLoader)
        at org.apache.geronimo.kernel.config.MultiParentClassLoader.loadClass(MultiParentClassLoader.java:281)
        - locked <0xd16a1348> (a
org.apache.geronimo.kernel.config.MultiParentClassLoader)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
        - locked <0xd16a1348> (a
org.apache.geronimo.kernel.config.MultiParentClassLoader)
        at org.aspectj.weaver.loadtime.Aj$WeaverContainer.getWeaver(Aj.java:115)
        - locked <0xd171a720> (a java.util.WeakHashMap)
        at org.aspectj.weaver.loadtime.Aj.preProcess(Aj.java:73)
        - locked <0xd1418d38> (a
org.apache.geronimo.kernel.config.MultiParentClassLoader)
        at org.aspectj.weaver.loadtime.ClassPreProcessorAgentAdapter.transform(ClassPreProcessorAgentAdapter.java:52)
        at org.apache.geronimo.transformer.TransformerCollection.transform(TransformerCollection.java:43)
        at sun.instrument.TransformerManager.transform(TransformerManager.java:122)
        at sun.instrument.InstrumentationImpl.transform(InstrumentationImpl.java:155)
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
        at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
        at org.apache.geronimo.kernel.config.MultiParentClassLoader.loadOptimizedClass(MultiParentClassLoader.java:425)
        - locked <0xd1418d38> (a
org.apache.geronimo.kernel.config.MultiParentClassLoader)
        at org.apache.geronimo.kernel.config.MultiParentClassLoader.loadClass(MultiParentClassLoader.java:281)
        - locked <0xd1418d38> (a
org.apache.geronimo.kernel.config.MultiParentClassLoader)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
        - locked <0xd1418d38> (a
org.apache.geronimo.kernel.config.MultiParentClassLoader)
        at org.apache.geronimo.common.propertyeditor.PropertyEditors.findEditor(PropertyEditors.java:79)
        at org.apache.geronimo.common.propertyeditor.PropertyEditors.findEditor(PropertyEditors.java:120)
        at org.apache.geronimo.system.configuration.GBeanOverride.loadPropertyEditor(GBeanOverride.java:399)
        at org.apache.geronimo.system.configuration.GBeanOverride.getValue(GBeanOverride.java:388)
        - locked <0xd161f8b0> (a
org.apache.geronimo.system.configuration.GBeanOverride)
        at org.apache.geronimo.system.configuration.GBeanOverride.applyOverrides(GBeanOverride.java:348)
        at org.apache.geronimo.system.configuration.LocalAttributeManager.setAttributes(LocalAttributeManager.java:228)
        - locked <0xd1430c00> (a
org.apache.geronimo.system.configuration.LocalAttributeManager)
        at org.apache.geronimo.system.configuration.LocalAttributeManager.applyOverrides(LocalAttributeManager.java:197)
        - locked <0xd1430c00> (a
org.apache.geronimo.system.configuration.LocalAttributeManager)
        at org.apache.geronimo.kernel.config.Configuration.<init>(Configuration.java:281)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
        at org.apache.xbean.recipe.ReflectionUtil$ConstructorFactory.create(ReflectionUtil.java:882)
        at org.apache.xbean.recipe.ObjectRecipe.internalCreate(ObjectRecipe.java:272)
        at org.apache.xbean.recipe.AbstractRecipe.create(AbstractRecipe.java:96)
        at org.apache.xbean.recipe.AbstractRecipe.create(AbstractRecipe.java:61)
        at org.apache.geronimo.gbean.runtime.GBeanInstance.createInstance(GBeanInstance.java:910)
        at org.apache.geronimo.gbean.runtime.GBeanInstanceState.attemptFullStart(GBeanInstanceState.java:269)
        at org.apache.geronimo.gbean.runtime.GBeanInstanceState.start(GBeanInstanceState.java:103)
        at org.apache.geronimo.gbean.runtime.GBeanInstance.start(GBeanInstance.java:524)
        at org.apache.geronimo.kernel.basic.BasicKernel.startGBean(BasicKernel.java:359)
        at org.apache.geronimo.kernel.config.KernelConfigurationManager.load(KernelConfigurationManager.java:163)
        at org.apache.geronimo.kernel.config.SimpleConfigurationManager.loadConfiguration(SimpleConfigurationManager.java:312)
        - locked <0xd1677580> (a
org.apache.geronimo.kernel.config.EditableKernelConfigurationManager)
        at org.apache.geronimo.kernel.config.SimpleConfigurationManager.loadConfiguration(SimpleConfigurationManager.java:280)
        - locked <0xd1677580> (a
org.apache.geronimo.kernel.config.EditableKernelConfigurationManager)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at org.apache.geronimo.gbean.runtime.ReflectionMethodInvoker.invoke(ReflectionMethodInvoker.java:34)
        at org.apache.geronimo.gbean.runtime.GBeanOperation.invoke(GBeanOperation.java:124)
        at org.apache.geronimo.gbean.runtime.GBeanInstance.invoke(GBeanInstance.java:815)
        at org.apache.geronimo.gbean.runtime.RawInvoker.invoke(RawInvoker.java:57)
        at org.apache.geronimo.kernel.basic.RawOperationInvoker.invoke(RawOperationInvoker.java:35)
        at org.apache.geronimo.kernel.basic.ProxyMethodInterceptor.intercept(ProxyMethodInterceptor.java:96)
        at org.apache.geronimo.kernel.config.EditableConfigurationManager$$EnhancerByCGLIB$$aa87e78a.loadConfiguration(<generated>)
        at org.apache.geronimo.system.main.EmbeddedDaemon.doStartup(EmbeddedDaemon.java:158)
        at org.apache.geronimo.system.main.EmbeddedDaemon.execute(EmbeddedDaemon.java:78)
        at org.apache.geronimo.kernel.util.MainConfigurationBootstrapper.main(MainConfigurationBootstrapper.java:45)
        at org.apache.geronimo.cli.AbstractCLI.executeMain(AbstractCLI.java:65)
        at org.apache.geronimo.cli.daemon.DaemonCLI.main(DaemonCLI.java:30)

Found 1 deadlock.

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