3:49 p.m.
[ http://jira.jboss.com/jira/browse/JBAS-4066?page=comments#action_12352478 ]
Scott M Stark commented on JBAS-4066:
-------------------------------------
Somewhere in between 1.5.0_04 and 1.5.0_09, the exception thrown when completing class
loaders try to load the same class has changed from a ClassCircularityError to the more
general LinkageError:
13:42:52,920 INFO [RecursiveCCETests$MyUCL] Unexpected error during load
of:org.jboss.test.classloader.circularity.support.HARMIServerImpl_Stub
java.lang.LinkageError: org/jboss/test/classloader/circularity/support/HARMIServer
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$1.run(URLClassLoader.java:195)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at
org.jboss.mx.loading.RepositoryClassLoader.findClassLocally(RepositoryClassLoader.java:672)
at
org.jboss.mx.loading.RepositoryClassLoader.findClass(RepositoryClassLoader.java:652)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at
org.jboss.mx.loading.RepositoryClassLoader.loadClassLocally(RepositoryClassLoader.java:190)
at
org.jboss.mx.loading.ClassLoadingTask$ThreadTask.run(ClassLoadingTask.java:131)
at org.jboss.mx.loading.LoadMgr3.nextTask(LoadMgr3.java:399)
at
org.jboss.test.classloader.circularity.test.RecursiveCCETests$MyUCL.loadClass(RecursiveCCETests.java:199)
The logic for retrying the load after competing class loading tasks have been retried
depends on the ClassCircularityError being thrown. There are several LinkageError
subclasses, and only the ClassCircularityError would seem to have retry semantics. If we
are to change to catch a LinkageError, additional logic to avoid repeated errors due to
the alternate, non-retryable forms would be needed.
failing org.jboss.test.classloader.test.CircularityUnitTestCase
---------------------------------------------------------------
Key: JBAS-4066
URL: http://jira.jboss.com/jira/browse/JBAS-4066
Project: JBoss Application Server
Issue Type: Sub-task
Security Level: Public(Everyone can see)
Components: Test Suite
Environment: Java Version 1.5.0_10
Java Vendor Sun Microsystems Inc.
Java VM Name Java HotSpot(TM) Client VM
Java VM Version 1.5.0_10-b03
Java VM Info mixed mode
OS Name Linux
OS Version 2.6.9-42.0.2.EL
OS Arch i386
Reporter: Dimitris Andreadis
Assigned To: Scott M Stark
Fix For: JBossAS-4.2.0.CR1
testRecursiveLoadMT Error N/A
javax.management.MBeanException
at
org.jboss.mx.interceptor.ReflectedDispatcher.handleInvocationExceptions(ReflectedDispatcher.java:180)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:163)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at
org.jboss.jmx.connector.invoker.InvokerAdaptorService.invoke(InvokerAdaptorService.java:266)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at
org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)
at
org.jboss.jmx.connector.invoker.SerializableInterceptor.invoke(SerializableInterceptor.java:74)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at org.jboss.invocation.jrmp.server.JRMPProxyFactory.invoke(JRMPProxyFactory.java:179)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at
org.jboss.invocation.jrmp.server.JRMPInvoker$MBeanServerAction.invoke(JRMPInvoker.java:819)
at org.jboss.invocation.jrmp.server.JRMPInvoker.invoke(JRMPInvoker.java:420)
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)
Caused by: java.lang.Exception: Thread1 failed to load HARMIServerImpl_Stub, class=null
at
org.jboss.test.classloader.circularity.test.RecursiveCCETests.testRecursiveLoadMT(RecursiveCCETests.java:99)
at org.jboss.test.classloader.circularity.Starter.testRecursiveLoadMT(Starter.java:154)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
... 42 more
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