Error deploying EJB to JBOSS5.1 AS:NullPointerException(name cannot be null)

[ddwolf]

Hello, fellows, I am just starting learning EJB on JBOSS 5.1 AS with open-jdk6. I have write this GreetingEJB,

And packaged it into a ejb.jar file.after copied this ejb.jar file into /opt/jboss/server/default/deploy,

I got something in server.log like below, Every response will bi appreciated.

java.lang.NullPointerException

          at javax.naming.NameImpl.<init>(NameImpl.java:281)

          at javax.naming.CompoundName.<init>(CompoundName.java:204)

          at org.jnp.interfaces.NamingParser.parse(NamingParser.java:62)

          at org.jboss.util.naming.Util.bind(Util.java:90)

          at org.jboss.ejb3.proxy.jndiregistrar.JndiSessionRegistrarBase.bind(JndiSessionRegistrarBase.java:909)

          at org.jboss.ejb3.proxy.jndiregistrar.JndiSessionRegistrarBase.bind(JndiSessionRegistrarBase.java:894)

          at org.jboss.ejb3.proxy.jndiregistrar.JndiSessionRegistrarBase.bind(JndiSessionRegistrarBase.java:883)

          at org.jboss.ejb3.proxy.jndiregistrar.JndiSessionRegistrarBase.bindEjb(JndiSessionRegistrarBase.java:150)

          at org.jboss.ejb3.session.SessionContainer.lockedStart(SessionContainer.java:179)

          at org.jboss.ejb3.session.SessionSpecContainer.lockedStart(SessionSpecContainer.java:589)

          at org.jboss.ejb3.stateless.StatelessContainer.lockedStart(StatelessContainer.java:247)

          at org.jboss.ejb3.EJBContainer.start(EJBContainer.java:884)

          at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

          at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

          at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

          at java.lang.reflect.Method.invoke(Method.java:616)

          at org.jboss.reflect.plugins.introspection.ReflectionUtils.invoke(ReflectionUtils.java:59)

          at org.jboss.reflect.plugins.introspection.ReflectMethodInfoImpl.invoke(ReflectMethodInfoImpl.java:150)

          at org.jboss.joinpoint.plugins.BasicMethodJoinPoint.dispatch(BasicMethodJoinPoint.java:66)

          at org.jboss.kernel.plugins.dependency.KernelControllerContextAction$JoinpointDispatchWrapper.execute(KernelControllerContextAction.java:241)

          at org.jboss.kernel.plugins.dependency.ExecutionWrapper.execute(ExecutionWrapper.java:47)

          at org.jboss.kernel.plugins.dependency.KernelControllerContextAction.dispatchExecutionWrapper(KernelControllerContextAction.java:109)

          at org.jboss.kernel.plugins.dependency.KernelControllerContextAction.dispatchJoinPoint(KernelControllerContextAction.java:70)

          at org.jboss.kernel.plugins.dependency.LifecycleAction.installActionInternal(LifecycleAction.java:221)

          at org.jboss.kernel.plugins.dependency.InstallsAwareAction.installAction(InstallsAwareAction.java:54)

          at org.jboss.kernel.plugins.dependency.InstallsAwareAction.installAction(InstallsAwareAction.java:42)

          at org.jboss.dependency.plugins.action.SimpleControllerContextAction.simpleInstallAction(SimpleControllerContextAction.java:62)

          at org.jboss.dependency.plugins.action.AccessControllerContextAction.install(AccessControllerContextAction.java:71)

          at org.jboss.dependency.plugins.AbstractControllerContextActions.install(AbstractControllerContextActions.java:51)

          at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:348)

          at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1598)

          at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:934)

          at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1062)

          at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:984)

          at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:774)

          at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:540)

          at org.jboss.deployers.vfs.deployer.kernel.BeanMetaDataDeployer.deploy(BeanMetaDataDeployer.java:121)

          at org.jboss.deployers.vfs.deployer.kernel.BeanMetaDataDeployer.deploy(BeanMetaDataDeployer.java:51)

          at org.jboss.deployers.spi.deployer.helpers.AbstractSimpleRealDeployer.internalDeploy(AbstractSimpleRealDeployer.java:62)

          at org.jboss.deployers.spi.deployer.helpers.AbstractRealDeployer.deploy(AbstractRealDeployer.java:50)

          at org.jboss.deployers.plugins.deployers.DeployerWrapper.deploy(DeployerWrapper.java:171)

          at org.jboss.deployers.plugins.deployers.DeployersImpl.doDeploy(DeployersImpl.java:1439)

          at org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:1157)

          at org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:1178)

          at org.jboss.deployers.plugins.deployers.DeployersImpl.install(DeployersImpl.java:1098)

          at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:348)

          at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1598)

          at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:934)

          at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1062)

          at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:984)

          at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:822)

          at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:553)

          at org.jboss.deployers.plugins.deployers.DeployersImpl.process(DeployersImpl.java:781)

          at org.jboss.deployers.plugins.main.MainDeployerImpl.process(MainDeployerImpl.java:698)

          at org.jboss.system.server.profileservice.hotdeploy.HDScanner.scan(HDScanner.java:290)

          at org.jboss.system.server.profileservice.hotdeploy.HDScanner.run(HDScanner.java:221)

          at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)

          at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:351)

          at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:178)

          at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:165)

          at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:267)

          at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)

          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)

          at java.lang.Thread.run(Thread.java:636)

16:39:16,180 WARN  [HDScanner] Failed to process changes

org.jboss.deployers.client.spi.IncompleteDeploymentException: Summary of incomplete deployments (SEE PREVIOUS ERRORS FOR DETAILS):

DEPLOYMENTS IN ERROR:

  Deployment "jboss.j2ee:jar=ejb.jar,name=GreetingEJB,service=EJB3" is in error due to the following reason(s): java.lang.NullPointerException

  Deployment "ProxyFactory/GreetingEJB/null" is in error due to the following reason(s): java.lang.NullPointerException

          at org.jboss.deployers.plugins.deployers.DeployersImpl.checkComplete(DeployersImpl.java:863)

          at org.jboss.deployers.plugins.main.MainDeployerImpl.checkComplete(MainDeployerImpl.java:806)

          at org.jboss.system.server.profileservice.hotdeploy.HDScanner.scan(HDScanner.java:293)

          at org.jboss.system.server.profileservice.hotdeploy.HDScanner.run(HDScanner.java:221)

          at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)

          at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:351)

          at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:178)

          at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:165)

          at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:267)

          at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)

          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)

          at java.lang.Thread.run(Thread.java:636)

[wdfink]

As far as I understand you try to deploy a EJB3 application?

Why you use deployment descriptors, EJB3 will free you from that.

I suppose you have a problem with mixture ...

Could you please attach the source files?

[ddwolf]

I Just want to learn EJB2.X because I am using EJB2.x in some particular place...So I want to mix them with EJB2 style:)

Source files have been attached:)

[wdfink]

If you deploy your ejb.jar as is (not in ear file) JBoss shows the problem:

  Deployment "vfszip:/D:/JBoss/community/jboss-5.1.0.GA/server/default/deploy/ejb.jar/" is in error due to the following reason(s): org.jboss.xb.binding.JBossXBRuntimeException: secure cannot appear in this position. Expected content of enterprise-beans is sequence: {choice}*

You have to check your ejb-jar.xml inside the ejb.jar

[ddwolf]

      thank u for your response:)

      Actually, I have encountered the problem you mentioned,and I have fixed that problem

by removing secure node both in ejb-jar.xml and jboss.xml. After that, I have encountered

the current problem I posted at the very first:

DEPLOYMENTS IN ERROR:

  Deployment "jboss.j2ee:jar=ejb.jar,name=GreetingEJB,service=EJB3" is in error due to the following reason(s): java.lang.NullPointerException

  Deployment "ProxyFactory/GreetingEJB/null" is in error due to the following reason(s): java.lang.NullPointerException

I have set the EJB's JNDI_NAME to "ejb/GreetingEJB" and EJB name to GreetingEJB

Idont' know why jboss think "ProxyFactory/GreetingEJB/null" is the EJB's name(?JNDI_Name).

[wdfink]

Does you deploy the ejb.jar as is and remove the ear file?

could you attach your corrected jar?

[ddwolf]

Sorry to reponse so late. the current jar file and tar file is the latest jar and source files:)

[ddwolf]

Now I know where is the error, But I don't know how to explain it

<?xml version="1.0"?>

<!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN"  

"http://java.sun.com/dtd/ejb-jar_2_0.dtd">

<ejb-jar>

          <description>jBoss test application</description>

  <display.....

If there isn't the blacked lines in the ejb-jar.xml file, the error will apeared. when added, the error was fixed and could be successfully tested with a client application.

do you know what is the reason? Thank u:)