[jboss-user] [EJB 3.0] - Simple injection of SessionContext not working
jaikiran
do-not-reply at jboss.com
Tue Jul 25 03:36:09 EDT 2006
I have just started with EJB3. Certainly, i am doing something wrong, because a simple injection is not working for me. I have StatelessSessionBean in which i am trying to inject the SessionContext. When i am trying to deploy the bean, server throws exceptions indicating a NullPointerException and subsequently the application is not deployed.
Here's the code:
| package org.myapp.ejb;
|
| import java.util.Random;
|
| import javax.annotation.Resource;
| import javax.annotation.security.PermitAll;
| import javax.annotation.security.RolesAllowed;
| import javax.ejb.SessionContext;
| import javax.ejb.Stateless;
| import javax.jms.Queue;
|
| import org.jboss.annotation.security.SecurityDomain;
|
| @Stateless
| @SecurityDomain("other")
| public class TestEJB3 implements TestEJB3Interface {
|
| @Resource
| SessionContext sessionContext;
|
| @PermitAll
| public void print() {
| System.out.println("Print Default: Hi");
| }
|
| @RolesAllowed({"Admin"})
| public String getDisplayValue() {
| return "Hi, user: " + new Random().nextInt();
| }
|
| @RolesAllowed({"AnyUser"})
| public void print(String text) {
| System.out.println("Print: " + text);
| }
|
|
|
| }
Here's the exception stacktrace when the application is being deployed:
anonymous wrote : 12:52:11,816 INFO [EARDeployer] Init J2EE application: file:/D:/JBoss4.0.4GCA/jboss-4.0.4.GA/server/default/deploy/MyEJB3.ear/
| 12:52:12,160 INFO [Ejb3Deployment] EJB3 deployment time took: 188
| 12:52:12,270 INFO [JmxKernelAbstraction] installing MBean: jboss.j2ee:ear=MyEJB3.ear,jar=myapp_ejb.jar,name=TestEJB3,service=EJB3 with dependencies:
| 12:52:12,691 WARN [ServiceController] Problem starting service jboss.j2ee:ear=MyEJB3.ear,jar=myapp_ejb.jar,name=TestEJB3,service=EJB3
| java.lang.NullPointerException
| at org.jboss.ejb3.injection.ResourceHandler.loadFieldInjectors(ResourceHandler.java:283) at org.jboss.ejb3.injection.ResourceHandler.loadInjectors(ResourceHandler.java:401)
| at org.jboss.ejb3.injection.ResourceHandler.loadInjectors(ResourceHandler.java:381)
| at org.jboss.ejb3.EJBContainer.resolveInjectors(EJBContainer.java:640)
| at org.jboss.ejb3.EJBContainer.initializePool(EJBContainer.java:576)
| at org.jboss.ejb3.EJBContainer.start(EJBContainer.java:507)
| at org.jboss.ejb3.SessionContainer.start(SessionContainer.java:82)
| at org.jboss.ejb3.stateless.StatelessContainer.start(StatelessContainer.java:80)
| 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.ejb3.ServiceDelegateWrapper.startService(ServiceDelegateWrapper.java:99)
| at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)
| at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)
| at sun.reflect.GeneratedMethodAccessor2.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: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.system.ServiceController$ServiceProxy.invoke(ServiceController.java:978)
| at $Proxy0.start(Unknown Source)
| at org.jboss.system.ServiceController.start(ServiceController.java:417)
| at sun.reflect.GeneratedMethodAccessor9.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: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.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
| at $Proxy56.start(Unknown Source)
| at org.jboss.ejb3.JmxKernelAbstraction.install(JmxKernelAbstraction.java:82)
| at org.jboss.ejb3.Ejb3Deployment.registerEJBContainer(Ejb3Deployment.java:439)
| at org.jboss.ejb3.Ejb3Deployment.start(Ejb3Deployment.java:486)
| at org.jboss.ejb3.Ejb3Module.startService(Ejb3Module.java:139)
| at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)
| at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)
| at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
| at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
| at java.lang.reflect.Method.invoke(Method.java:585)
| at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
| at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
| at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
| at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
| at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
| at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:978)
| at $Proxy0.start(Unknown Source)
| at org.jboss.system.ServiceController.start(ServiceController.java:417)
| at sun.reflect.GeneratedMethodAccessor9.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: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.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
| at $Proxy29.start(Unknown Source)
| at org.jboss.ejb3.EJB3Deployer.start(EJB3Deployer.java:449)
| 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: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.mx.interceptor.DynamicInterceptor.invoke(DynamicInterceptor.java:97)
| 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.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
| at $Proxy30.start(Unknown Source)
| at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1007)
| at org.jboss.deployment.MainDeployer.start(MainDeployer.java:997)
| at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:808)
| at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:771)
| at sun.reflect.GeneratedMethodAccessor49.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: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.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.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
| at $Proxy8.deploy(Unknown Source)
| at org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScanner.java:421)
| at org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java:634)
| at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan(AbstractDeploymentScanner.java:263)
| at org.jboss.deployment.scanner.AbstractDeploymentScanner.startService(AbstractDeploymentScanner.java:336)
| at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)
| at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)
| at sun.reflect.GeneratedMethodAccessor2.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: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.system.ServiceController$ServiceProxy.invoke(ServiceController.java:978)
| at $Proxy0.start(Unknown Source)
| at org.jboss.system.ServiceController.start(ServiceController.java:417)
| at sun.reflect.GeneratedMethodAccessor9.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: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.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
| at $Proxy4.start(Unknown Source)
| at org.jboss.deployment.SARDeployer.start(SARDeployer.java:302)
| at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1007)
| at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:808)
| at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:771)
| at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:755)
| 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: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.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.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
| at $Proxy5.deploy(Unknown Source)
| at org.jboss.system.server.ServerImpl.doStart(ServerImpl.java:482)
| at org.jboss.system.server.ServerImpl.start(ServerImpl.java:362)
| at org.jboss.Main.boot(Main.java:200)
| at org.jboss.Main$1.run(Main.java:464)
| at java.lang.Thread.run(Thread.java:595)
| 12:52:13,457 INFO [EJB3Deployer] Deployed: file:/D:/JBoss4.0.4GCA/jboss-4.0.4.GA/server/default/deploy/MyEJB3.ear/myapp_ejb.jar/
| 12:52:13,473 INFO [TomcatDeployer] deploy, ctxPath=/myapp, warUrl=.../deploy/MyEJB3.ear/myapp_web.war/
| 12:52:13,770 INFO [EARDeployer] Started J2EE application: file:/D:/JBoss4.0.4GCA/jboss-4.0.4.GA/server/default/deploy/MyEJB3.ear/
| 12:52:13,785 ERROR [URLDeploymentScanner] Incomplete Deployment listing:
|
| --- MBeans waiting for other MBeans ---
| ObjectName: jboss.j2ee:ear=MyEJB3.ear,jar=myapp_ejb.jar,name=TestEJB3,service=EJB3
| State: FAILED
| Reason: java.lang.NullPointerException
|
| --- MBEANS THAT ARE THE ROOT CAUSE OF THE PROBLEM ---
| ObjectName: jboss.j2ee:ear=MyEJB3.ear,jar=myapp_ejb.jar,name=TestEJB3,service=EJB3
| State: FAILED
| Reason: java.lang.NullPointerException
I am using JBoss - 4.0.4 GCA. I followed the following steps after installing the server:
1) I downloaded jboss-EJB-3.0_RC8-FD
2) Copied ejb3-persistence.jar in server/default/lib
3) Copied ejb3-interceptors-aop.xml in server/default/deploy
4) ejb3.deployer in server/default/deploy
Is there something else, i need to do to get injection working? Note that with the injection part commented out, everything works fine, the EJB gets deployed and i am able to invoke methods on the EJB.
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