Deploying Multiple EARs
I have a working EAR which is a full J2EE application with EJB3, and I am trying to deploy multiple instances of this application onto the same JBoss server. The goal is to make each EAR completely independent from all the others. From reading the Wiki, the first step would be to give each EAR its own isolated classloader. I simply added the following line to jboss-app.xml in the META-INF directory of each EAR:
<jboss-app> <loader-repository> www.mycompany.com:loader=ear1.ear </loader-repository> </jboss-app>
The value of "ear1.ear" changes depending on which ear is being deployed. However, when I try to deploy the EAR after the modification, I get the following exception:
13:44:04,147 ERROR [Ejb3Module] Initialization failed jboss.j2ee:service=EJB3,module=beans.ejb3 java.lang.IllegalArgumentException: class not found at org.hibernate.ejb.HibernatePersistence.addNamedAnnotatedClasses(HibernatePersistence.java:556) at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:389) at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:272) at org.jboss.ejb3.Ejb3Deployment.initializeManagedEntityManagerFactory(Ejb3Deployment.java:476) at org.jboss.ejb3.Ejb3Deployment.create(Ejb3Deployment.java:219) at org.jboss.ejb3.Ejb3Module.createService(Ejb3Module.java:34) at org.jboss.system.ServiceMBeanSupport.jbossInternalCreate(ServiceMBeanSupport.java:238) at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:220) 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.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:141) at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80) at org.jboss.mx.server.Invocation.invoke(Invocation.java:72) at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:249) at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:644) at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:897) at $Proxy0.create(Unknown Source) at org.jboss.system.ServiceController.create(ServiceController.java:330) at org.jboss.system.ServiceController.create(ServiceController.java:275) at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:141) at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80) at org.jboss.mx.server.Invocation.invoke(Invocation.java:72) at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:249) at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:644) at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:177) at $Proxy16.create(Unknown Source) at org.jboss.ejb3.EJB3Deployer.create(EJB3Deployer.java:178) at org.jboss.deployment.MainDeployer.create(MainDeployer.java:918) at org.jboss.deployment.MainDeployer.create(MainDeployer.java:910) at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:774) at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:738) at sun.reflect.GeneratedMethodAccessor16.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:141) at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80) at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:121) at org.jboss.mx.server.Invocation.invoke(Invocation.java:74) at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:127) at org.jboss.mx.server.Invocation.invoke(Invocation.java:74) at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:249) at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:644) at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:177) at $Proxy8.deploy(Unknown Source) at org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScanner.java:325) at org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java:501) at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan(AbstractDeploymentScanner.java:204) at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.loop(AbstractDeploymentScanner.java:215) at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.run(AbstractDeploymentScanner.java:194) Caused by: java.lang.ClassNotFoundException: No ClassLoaders found for: beans.entity.Request at org.jboss.mx.loading.LoadMgr3.beginLoadTask(LoadMgr3.java:292) at org.jboss.mx.loading.RepositoryClassLoader.loadClassImpl(RepositoryClassLoader.java:475) at org.jboss.mx.loading.RepositoryClassLoader.loadClass(RepositoryClassLoader.java:377) at java.lang.ClassLoader.loadClass(ClassLoader.java:251) at org.hibernate.ejb.HibernatePersistence.addNamedAnnotatedClasses(HibernatePersistence.java:549) ... 53 more 13:44:04,152 WARN [ServiceController] Problem creating service jboss.j2ee:service=EJB3,module=beans.ejb3 java.lang.IllegalArgumentException: class not found at org.hibernate.ejb.HibernatePersistence.addNamedAnnotatedClasses(HibernatePersistence.java:556) at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:389) at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:272) at org.jboss.ejb3.Ejb3Deployment.initializeManagedEntityManagerFactory(Ejb3Deployment.java:476) at org.jboss.ejb3.Ejb3Deployment.create(Ejb3Deployment.java:219) at org.jboss.ejb3.Ejb3Module.createService(Ejb3Module.java:34) at org.jboss.system.ServiceMBeanSupport.jbossInternalCreate(ServiceMBeanSupport.java:238) at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:220) 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.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:141) at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80) at org.jboss.mx.server.Invocation.invoke(Invocation.java:72) at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:249) at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:644) at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:897) at $Proxy0.create(Unknown Source) at org.jboss.system.ServiceController.create(ServiceController.java:330) at org.jboss.system.ServiceController.create(ServiceController.java:275) at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:141) at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80) at org.jboss.mx.server.Invocation.invoke(Invocation.java:72) at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:249) at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:644) at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:177) at $Proxy16.create(Unknown Source) at org.jboss.ejb3.EJB3Deployer.create(EJB3Deployer.java:178) at org.jboss.deployment.MainDeployer.create(MainDeployer.java:918) at org.jboss.deployment.MainDeployer.create(MainDeployer.java:910) at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:774) at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:738) at sun.reflect.GeneratedMethodAccessor16.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:141) at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80) at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:121) at org.jboss.mx.server.Invocation.invoke(Invocation.java:74) at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:127) at org.jboss.mx.server.Invocation.invoke(Invocation.java:74) at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:249) at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:644) at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:177) at $Proxy8.deploy(Unknown Source) at org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScanner.java:325) at org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java:501) at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan(AbstractDeploymentScanner.java:204) at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.loop(AbstractDeploymentScanner.java:215) at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.run(AbstractDeploymentScanner.java:194) Caused by: java.lang.ClassNotFoundException: No ClassLoaders found for: beans.entity.Request at org.jboss.mx.loading.LoadMgr3.beginLoadTask(LoadMgr3.java:292) at org.jboss.mx.loading.RepositoryClassLoader.loadClassImpl(RepositoryClassLoader.java:475) at org.jboss.mx.loading.RepositoryClassLoader.loadClass(RepositoryClassLoader.java:377) at java.lang.ClassLoader.loadClass(ClassLoader.java:251) at org.hibernate.ejb.HibernatePersistence.addNamedAnnotatedClasses(HibernatePersistence.java:549) ... 53 more
The beans.entity.Request class is an EJB3 entity bean which is contained in an EJB3 archive within the EAR. Considering that the deployment went fine before I made the jboss-app.xml change, what did I do wrong? Is there something else I need to do? I am using JBoss 4.0.2 with EJB3 RC1. Thank you in advance for any feedback.
