5:06 a.m.
I am trying out a simple EJB3 application on JBoss-5.0 Beta3, Java 1.5. The application
includes a StatelessSessionBean, a few entities and a persistence unit. The application
deploys properly and works as per expectations. However, when i shutdown JBoss, i see the
following exceptions in the logs:
2008-02-12 12:58:34,208 INFO [org.jboss.ejb3.entity.PersistenceUnitDeployment] Stopping
persistence unit
persistence.units:ear=EJB3Persistence.ear,jar=myapp_ejb3.jar,unitName=EJB3Persistence
| 2008-02-12 12:58:37,896 INFO [org.hibernate.impl.SessionFactoryImpl] closing
| 2008-02-12 12:58:37,896 INFO [org.hibernate.impl.SessionFactoryObjectFactory]
Unbinding factory from JNDI name:
persistence.units:ear=EJB3Persistence.ear,jar=myapp_ejb3.jar,unitName=EJB3Persistence
| 2008-02-12 12:58:37,896 INFO [org.hibernate.util.NamingHelper] JNDI InitialContext
properties:{java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory,
java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces}
| 2008-02-12 12:59:37,710 ERROR [org.hibernate.util.NamingHelper] Could not obtain
initial context
| javax.naming.NoInitialContextException: Cannot instantiate class:
org.jnp.interfaces.NamingContextFactory [Root exception is
java.lang.ClassNotFoundException: org.jnp.interfaces.NamingContextFactory]
| at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:657)
| at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:247)
| at javax.naming.InitialContext.init(InitialContext.java:223)
| at javax.naming.InitialContext.<init>(InitialContext.java:197)
| at org.hibernate.util.NamingHelper.getInitialContext(NamingHelper.java:28)
| at
org.hibernate.impl.SessionFactoryObjectFactory.removeInstance(SessionFactoryObjectFactory.java:115)
| at org.hibernate.impl.SessionFactoryImpl.close(SessionFactoryImpl.java:806)
| at
org.hibernate.ejb.EntityManagerFactoryImpl.close(EntityManagerFactoryImpl.java:43)
| at
org.jboss.ejb3.entity.ManagedEntityManagerFactory.destroy(ManagedEntityManagerFactory.java:95)
| at
org.jboss.ejb3.entity.PersistenceUnitDeployment.stop(PersistenceUnitDeployment.java:292)
| 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.jboss.reflect.plugins.introspection.ReflectionUtils.invoke(ReflectionUtils.java:56)
| at
org.jboss.reflect.plugins.introspection.ReflectMethodInfoImpl.invoke(ReflectMethodInfoImpl.java:110)
| at
org.jboss.joinpoint.plugins.BasicMethodJoinPoint.dispatch(BasicMethodJoinPoint.java:66)
| at
org.jboss.kernel.plugins.dependency.KernelControllerContextAction$JoinpointDispatchWrapper.execute(KernelControllerContextAction.java:214)
| at
org.jboss.kernel.plugins.dependency.ExecutionWrapper.execute(ExecutionWrapper.java:45)
| at
org.jboss.kernel.plugins.dependency.KernelControllerContextAction.dispatchExecutionWrapper(KernelControllerContextAction.java:108)
| at
org.jboss.kernel.plugins.dependency.KernelControllerContextAction.dispatchJoinPoint(KernelControllerContextAction.java:69)
| at
org.jboss.kernel.plugins.dependency.LifecycleAction.uninstallActionInternal(LifecycleAction.java:249)
| at
org.jboss.kernel.plugins.dependency.KernelControllerContextAction.uninstallAction(KernelControllerContextAction.java:167)
| at
org.jboss.kernel.plugins.dependency.KernelControllerContextAction.uninstallAction(KernelControllerContextAction.java:46)
| at
org.jboss.dependency.plugins.action.SimpleControllerContextAction.simpleUninstallAction(SimpleControllerContextAction.java:79)
| at
org.jboss.dependency.plugins.action.AccessControllerContextAction.uninstall(AccessControllerContextAction.java:131)
| at
org.jboss.dependency.plugins.AbstractControllerContextActions.uninstall(AbstractControllerContextActions.java:58)
| at
org.jboss.dependency.plugins.AbstractControllerContext.uninstall(AbstractControllerContext.java:333)
| at
org.jboss.dependency.plugins.AbstractController.uninstall(AbstractController.java:1323)
| at
org.jboss.dependency.plugins.AbstractController.uninstallContext(AbstractController.java:1009)
| at
org.jboss.dependency.plugins.AbstractController.uninstallContext(AbstractController.java:936)
| at
org.jboss.dependency.plugins.AbstractController.uninstallContext(AbstractController.java:986)
| at
org.jboss.dependency.plugins.AbstractController.uninstallContext(AbstractController.java:936)
| at
org.jboss.dependency.plugins.AbstractController.uninstallContext(AbstractController.java:986)
| at
org.jboss.dependency.plugins.AbstractController.uninstallContext(AbstractController.java:936)
| at
org.jboss.dependency.plugins.AbstractController.uninstallContext(AbstractController.java:986)
| at
org.jboss.dependency.plugins.AbstractController.uninstallContext(AbstractController.java:936)
| at
org.jboss.dependency.plugins.AbstractController.uninstallContext(AbstractController.java:986)
| at
org.jboss.dependency.plugins.AbstractController.uninstallContext(AbstractController.java:936)
| at
org.jboss.dependency.plugins.AbstractController.uninstallContext(AbstractController.java:986)
| at
org.jboss.dependency.plugins.AbstractController.uninstallContext(AbstractController.java:936)
| at
org.jboss.dependency.plugins.AbstractController.uninstallContext(AbstractController.java:986)
| at
org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:627)
| at
org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:411)
| at org.jboss.system.ServiceController.doChange(ServiceController.java:659)
| at org.jboss.system.ServiceController.stop(ServiceController.java:481)
| at org.jboss.system.deployers.ServiceDeployer.stop(ServiceDeployer.java:156)
| at org.jboss.system.deployers.ServiceDeployer.undeploy(ServiceDeployer.java:136)
| at org.jboss.system.deployers.ServiceDeployer.undeploy(ServiceDeployer.java:46)
| at
org.jboss.deployers.spi.deployer.helpers.AbstractSimpleRealDeployer.internalUndeploy(AbstractSimpleRealDeployer.java:73)
| at
org.jboss.deployers.spi.deployer.helpers.AbstractRealDeployer.undeploy(AbstractRealDeployer.java:112)
| at
org.jboss.deployers.plugins.deployers.DeployerWrapper.undeploy(DeployerWrapper.java:187)
| at
org.jboss.deployers.plugins.deployers.DeployersImpl.doUninstallParentLast(DeployersImpl.java:1072)
| at
org.jboss.deployers.plugins.deployers.DeployersImpl.doUninstallParentLast(DeployersImpl.java:1065)
| at
org.jboss.deployers.plugins.deployers.DeployersImpl.uninstall(DeployersImpl.java:1027)
| at
org.jboss.dependency.plugins.AbstractControllerContext.uninstall(AbstractControllerContext.java:333)
| at
org.jboss.dependency.plugins.AbstractController.uninstall(AbstractController.java:1323)
| at
org.jboss.dependency.plugins.AbstractController.uninstallContext(AbstractController.java:1009)
| at
org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:627)
| at
org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:411)
| at
org.jboss.deployers.plugins.deployers.DeployersImpl.process(DeployersImpl.java:423)
| at
org.jboss.deployers.plugins.main.MainDeployerImpl.process(MainDeployerImpl.java:506)
| at
org.jboss.deployers.plugins.main.MainDeployerImpl.shutdown(MainDeployerImpl.java:543)
| at
org.jboss.system.server.profileservice.ProfileServiceBootstrap.shutdown(ProfileServiceBootstrap.java:151)
| at
org.jboss.bootstrap.AbstractServerImpl.shutdownServer(AbstractServerImpl.java:505)
| at
org.jboss.bootstrap.AbstractServerImpl$ShutdownHook.run(AbstractServerImpl.java:824)
| Caused by: java.lang.ClassNotFoundException: org.jnp.interfaces.NamingContextFactory
| at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
| at java.security.AccessController.doPrivileged(Native Method)
| at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
| at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
| at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
| at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
| at java.lang.Class.forName0(Native Method)
| at java.lang.Class.forName(Class.java:242)
| at com.sun.naming.internal.VersionHelper12.loadClass(VersionHelper12.java:42)
| at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:654)
| ... 65 more
| 2008-02-12 12:59:37,726 WARN [org.hibernate.impl.SessionFactoryObjectFactory] Could
not unbind factory from JNDI
| javax.naming.NoInitialContextException: Cannot instantiate class:
org.jnp.interfaces.NamingContextFactory [Root exception is
java.lang.ClassNotFoundException: org.jnp.interfaces.NamingContextFactory]
| at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:657)
| at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:247)
| at javax.naming.InitialContext.init(InitialContext.java:223)
| at javax.naming.InitialContext.<init>(InitialContext.java:197)
| at org.hibernate.util.NamingHelper.getInitialContext(NamingHelper.java:28)
| at
org.hibernate.impl.SessionFactoryObjectFactory.removeInstance(SessionFactoryObjectFactory.java:115)
| at org.hibernate.impl.SessionFactoryImpl.close(SessionFactoryImpl.java:806)
| at
org.hibernate.ejb.EntityManagerFactoryImpl.close(EntityManagerFactoryImpl.java:43)
| at
org.jboss.ejb3.entity.ManagedEntityManagerFactory.destroy(ManagedEntityManagerFactory.java:95)
| at
org.jboss.ejb3.entity.PersistenceUnitDeployment.stop(PersistenceUnitDeployment.java:292)
| 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.jboss.reflect.plugins.introspection.ReflectionUtils.invoke(ReflectionUtils.java:56)
| at
org.jboss.reflect.plugins.introspection.ReflectMethodInfoImpl.invoke(ReflectMethodInfoImpl.java:110)
| at
org.jboss.joinpoint.plugins.BasicMethodJoinPoint.dispatch(BasicMethodJoinPoint.java:66)
| at
org.jboss.kernel.plugins.dependency.KernelControllerContextAction$JoinpointDispatchWrapper.execute(KernelControllerContextAction.java:214)
| at
org.jboss.kernel.plugins.dependency.ExecutionWrapper.execute(ExecutionWrapper.java:45)
| at
org.jboss.kernel.plugins.dependency.KernelControllerContextAction.dispatchExecutionWrapper(KernelControllerContextAction.java:108)
| at
org.jboss.kernel.plugins.dependency.KernelControllerContextAction.dispatchJoinPoint(KernelControllerContextAction.java:69)
| at
org.jboss.kernel.plugins.dependency.LifecycleAction.uninstallActionInternal(LifecycleAction.java:249)
| at
org.jboss.kernel.plugins.dependency.KernelControllerContextAction.uninstallAction(KernelControllerContextAction.java:167)
| at
org.jboss.kernel.plugins.dependency.KernelControllerContextAction.uninstallAction(KernelControllerContextAction.java:46)
| at
org.jboss.dependency.plugins.action.SimpleControllerContextAction.simpleUninstallAction(SimpleControllerContextAction.java:79)
| at
org.jboss.dependency.plugins.action.AccessControllerContextAction.uninstall(AccessControllerContextAction.java:131)
| at
org.jboss.dependency.plugins.AbstractControllerContextActions.uninstall(AbstractControllerContextActions.java:58)
| at
org.jboss.dependency.plugins.AbstractControllerContext.uninstall(AbstractControllerContext.java:333)
| at
org.jboss.dependency.plugins.AbstractController.uninstall(AbstractController.java:1323)
| at
org.jboss.dependency.plugins.AbstractController.uninstallContext(AbstractController.java:1009)
| at
org.jboss.dependency.plugins.AbstractController.uninstallContext(AbstractController.java:936)
| at
org.jboss.dependency.plugins.AbstractController.uninstallContext(AbstractController.java:986)
| at
org.jboss.dependency.plugins.AbstractController.uninstallContext(AbstractController.java:936)
| at
org.jboss.dependency.plugins.AbstractController.uninstallContext(AbstractController.java:986)
| at
org.jboss.dependency.plugins.AbstractController.uninstallContext(AbstractController.java:936)
| at
org.jboss.dependency.plugins.AbstractController.uninstallContext(AbstractController.java:986)
| at
org.jboss.dependency.plugins.AbstractController.uninstallContext(AbstractController.java:936)
| at
org.jboss.dependency.plugins.AbstractController.uninstallContext(AbstractController.java:986)
| at
org.jboss.dependency.plugins.AbstractController.uninstallContext(AbstractController.java:936)
| at
org.jboss.dependency.plugins.AbstractController.uninstallContext(AbstractController.java:986)
| at
org.jboss.dependency.plugins.AbstractController.uninstallContext(AbstractController.java:936)
| at
org.jboss.dependency.plugins.AbstractController.uninstallContext(AbstractController.java:986)
| at
org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:627)
| at
org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:411)
| at org.jboss.system.ServiceController.doChange(ServiceController.java:659)
| at org.jboss.system.ServiceController.stop(ServiceController.java:481)
| at org.jboss.system.deployers.ServiceDeployer.stop(ServiceDeployer.java:156)
| at org.jboss.system.deployers.ServiceDeployer.undeploy(ServiceDeployer.java:136)
| at org.jboss.system.deployers.ServiceDeployer.undeploy(ServiceDeployer.java:46)
| at
org.jboss.deployers.spi.deployer.helpers.AbstractSimpleRealDeployer.internalUndeploy(AbstractSimpleRealDeployer.java:73)
| at
org.jboss.deployers.spi.deployer.helpers.AbstractRealDeployer.undeploy(AbstractRealDeployer.java:112)
| at
org.jboss.deployers.plugins.deployers.DeployerWrapper.undeploy(DeployerWrapper.java:187)
| at
org.jboss.deployers.plugins.deployers.DeployersImpl.doUninstallParentLast(DeployersImpl.java:1072)
| at
org.jboss.deployers.plugins.deployers.DeployersImpl.doUninstallParentLast(DeployersImpl.java:1065)
| at
org.jboss.deployers.plugins.deployers.DeployersImpl.uninstall(DeployersImpl.java:1027)
| at
org.jboss.dependency.plugins.AbstractControllerContext.uninstall(AbstractControllerContext.java:333)
| at
org.jboss.dependency.plugins.AbstractController.uninstall(AbstractController.java:1323)
| at
org.jboss.dependency.plugins.AbstractController.uninstallContext(AbstractController.java:1009)
| at
org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:627)
| at
org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:411)
| at
org.jboss.deployers.plugins.deployers.DeployersImpl.process(DeployersImpl.java:423)
| at
org.jboss.deployers.plugins.main.MainDeployerImpl.process(MainDeployerImpl.java:506)
| at
org.jboss.deployers.plugins.main.MainDeployerImpl.shutdown(MainDeployerImpl.java:543)
| at
org.jboss.system.server.profileservice.ProfileServiceBootstrap.shutdown(ProfileServiceBootstrap.java:151)
| at
org.jboss.bootstrap.AbstractServerImpl.shutdownServer(AbstractServerImpl.java:505)
| at
org.jboss.bootstrap.AbstractServerImpl$ShutdownHook.run(AbstractServerImpl.java:824)
| Caused by: java.lang.ClassNotFoundException: org.jnp.interfaces.NamingContextFactory
| at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
| at java.security.AccessController.doPrivileged(Native Method)
| at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
| at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
| at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
| at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
| at java.lang.Class.forName0(Native Method)
| at java.lang.Class.forName(Class.java:242)
| at com.sun.naming.internal.VersionHelper12.loadClass(VersionHelper12.java:42)
| at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:654)
| ... 65 more
|
|
|
A bit of debugging showed that the Shutdown hook thread which triggers the close of the
EntityManagerFactory sets the context classloader of the thread to
org.jboss.system.NoAnnotationURLClassLoader because of which the
org.jnp.interfaces.NamingContextFactory class is not found by the classloader or its
parent classloader.
Just for the sake of testing, i changed the code in the destroy method of the
org.jboss.ejb3.entity.ManagedEntityManagerFactory to set the context classloader before
invoking the close method of the entitymanager factory as follows:
public void destroy()
| {
| System.out.println("Classloader of entity manager factory is : " +
entityManagerFactory.getClass().getClassLoader());
|
| ClassLoader origClassloader = Thread.currentThread().getContextClassLoader();
| try {
| System.out.println("Setting the context classloader of " +
Thread.currentThread() + " to " +
entityManagerFactory.getClass().getClassLoader());
|
Thread.currentThread().setContextClassLoader(entityManagerFactory.getClass().getClassLoader());
| entityManagerFactory.close();
| } finally {
| Thread.currentThread().setContextClassLoader(origClassloader);
| System.out.println("Reset classloader of thread : " +
Thread.currentThread() + " to " + origClassloader);
| }
| }
|
This worked and i no longer see the exception. Here's the logs on JBoss shutdown:
2008-02-12 15:38:51,956 INFO [org.jboss.ejb3.entity.PersistenceUnitDeployment] Stopping
persistence unit
persistence.units:ear=EJB3Persistence.ear,jar=myapp_ejb3.jar,unitName=EJB3Persistence
| 2008-02-12 15:38:51,971 INFO [STDOUT] Classloader of entity manager factory is :
org.jboss.mx.loading.UnifiedClassLoader3@1cefde4{
url=vfsfile:/D:/jboss-5.0.0.Beta3/server/jaikiran/conf/jboss-service.xml ,addedOrder=2}
| 2008-02-12 15:38:51,971 INFO [STDOUT] Setting the context classloader of Thread[JBoss
Shutdown Hook,5,jboss] to org.jboss.mx.loading.UnifiedClassLoader3@1cefde4{
url=vfsfile:/D:/jboss-5.0.0.Beta3/server/jaikiran/conf/jboss-service.xml ,addedOrder=2}
| 2008-02-12 15:38:51,987 INFO [org.hibernate.impl.SessionFactoryImpl] closing
| 2008-02-12 15:38:51,987 INFO [org.hibernate.impl.SessionFactoryObjectFactory]
Unbinding factory from JNDI name:
persistence.units:ear=EJB3Persistence.ear,jar=myapp_ejb3.jar,unitName=EJB3Persistence
| 2008-02-12 15:38:52,003 INFO [org.hibernate.util.NamingHelper] JNDI InitialContext
properties:{java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory,
java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces}
| 2008-02-12 15:38:52,018 INFO [org.hibernate.impl.SessionFactoryObjectFactory] Unbound
factory from JNDI name:
persistence.units:ear=EJB3Persistence.ear,jar=myapp_ejb3.jar,unitName=EJB3Persistence
| 2008-02-12 15:38:52,018 TRACE [org.jboss.mx.loading.RepositoryClassLoader]
getResourceLocally(org.jboss.mx.loading.UnifiedClassLoader3@142c63f{
url=vfsfile:/D:/jboss-5.0.0.Beta3/server/jaikiran/deployers/bsh.deployer/ ,addedOrder=3}),
name=org/apache/tomcat/util/buf/ByteChunk$ByteOutputChannel.class, resURL:null
| 2008-02-12 15:38:52,018 INFO [STDOUT] Reset classloader of thread : Thread[JBoss
Shutdown Hook,5,jboss] to org.jboss.system.NoAnnotationURLClassLoader@1bbdd48
|
|
The code change that i did was just for testing and there might be a better way to achieve
this. I searched the JIRA to see if this has been reported before, but could not find any.
Do i open a new issue (i can add my sample application and the classloader logs, if
that's required) for this or did i miss a already reported issue in the JIRA?
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