[jboss-user] [EJB/JBoss] - Dependency bug with multiple modules in EAR

Thursday, 27 March 2008

Hi,

I found a very strange bug in JBoss 4.2.2.GA (and a workaround, thank goodness!) when
using an EAR with multiple
modules/JARS in application.xml: We have several (Maven) projects each of which contains
session beans and one
project with the data model entities (EJB3). They each produce a JAR that goes into the
EAR as a module.

Now I added a new project that contained a simple MDB like this:

@MessageDriven(activationConfig = {
  |     @ActivationConfigProperty(propertyName = "destinationType",
propertyValue = "javax.jms.Queue"),
  |     @ActivationConfigProperty(propertyName = "destination", propertyValue =
"queue/testQueue") })
  | public class RequestReceiverMDB implements MessageListener {
  | ...
  | }
  | 

To my amazement the following exception occurred upon deployment:

18:15:14,488 INFO  [EARDeployer] Init J2EE application:
file:/C:/server/Cellactive-Server/server/default/deploy/mps-serverapplication-1.4-SNAPSHOT.ear/
  | 18:15:15,004 WARN  [MainDeployer] Found non-jar deployer for
mps-datamodel-1.4-SNAPSHOT.jar: MBeanProxyExt[jboss.ejb3:service=EJB3Deployer]
  | 18:15:15,035 WARN  [MainDeployer] Found non-jar deployer for
mps-datamodel-1.4-SNAPSHOT.jar: MBeanProxyExt[jboss.ejb3:service=EJB3Deployer]
  | 18:15:15,082 WARN  [MainDeployer] Found non-jar deployer for
mps-operation-1.4-SNAPSHOT.jar: MBeanProxyExt[jboss.ejb3:service=EJB3Deployer]
  | 18:15:16,082 INFO  [JmxKernelAbstraction] creating wrapper delegate for:
org.jboss.ejb3.stateless.StatelessContainer
  | 18:15:16,082 INFO  [JmxKernelAbstraction] installing MBean:
jboss.j2ee:ear=mps-serverapplication-1.4-SNAPSHOT.ear,jar=jboss-seam-2.0.1.GA.jar,name=TimerServiceDispatcher,service=EJB3
with dependencies:
  | 18:15:16,175 INFO  [EJBContainer] STARTED EJB:
org.jboss.seam.async.TimerServiceDispatcher ejbName: TimerServiceDispatcher
  | 18:15:16,207 INFO  [JmxKernelAbstraction] creating wrapper delegate for:
org.jboss.ejb3.stateful.StatefulContainer
  | 18:15:16,207 INFO  [JmxKernelAbstraction] installing MBean:
jboss.j2ee:ear=mps-serverapplication-1.4-SNAPSHOT.ear,jar=jboss-seam-2.0.1.GA.jar,name=EjbSynchronizations,service=EJB3
with dependencies:
  | 18:15:16,222 INFO  [EJBContainer] STARTED EJB:
org.jboss.seam.transaction.EjbSynchronizations ejbName: EjbSynchronizations
  | 18:15:16,254 INFO  [EJB3Deployer] Deployed:
file:/C:/server/Cellactive-Server/server/default/deploy/mps-serverapplication-1.4-SNAPSHOT.ear/jboss-seam-2.0.1.GA.jar
  | 18:15:16,254 INFO  [JmxKernelAbstraction] creating wrapper delegate for:
org.jboss.ejb3.mdb.MDB
  | 18:15:16,254 INFO  [JmxKernelAbstraction] installing MBean:
jboss.j2ee:ear=mps-serverapplication-1.4-SNAPSHOT.ear,jar=mps-acquireradapter-1.4-SNAPSHOT.jar,name=PaymentRequestReceiverMDB,service=EJB3
with dependencies:
  | 18:15:16,254 INFO  [EJBContainer] STARTED EJB:
com.cellactive.mp.acquirer.adapter.request.PaymentRequestReceiverMDB ejbName:
PaymentRequestReceiverMDB
  | 18:15:16,269 INFO  [JmxKernelAbstraction] creating wrapper delegate for:
org.jboss.ejb3.stateless.StatelessContainer
  | 18:15:16,269 INFO  [JmxKernelAbstraction] installing MBean:
jboss.j2ee:ear=mps-serverapplication-1.4-SNAPSHOT.ear,jar=mps-acquireradapter-1.4-SNAPSHOT.jar,name=DummyAcquirer,service=EJB3
with dependencies:
  | 18:15:16,285 INFO  [EJBContainer] STARTED EJB:
com.cellactive.mp.acquirer.dummy.DummyAcquirer ejbName: DummyAcquirer
  | 18:15:16,285 INFO  [EJB3Deployer] Deployed:
file:/C:/server/Cellactive-Server/server/default/deploy/mps-serverapplication-1.4-SNAPSHOT.ear/mps-acquireradapter-1.4-SNAPSHOT.jar
  | 18:15:16,332 INFO  [JmxKernelAbstraction] creating wrapper delegate for:
org.jboss.ejb3.stateless.StatelessContainer
  | 18:15:16,332 INFO  [JmxKernelAbstraction] installing MBean:
jboss.j2ee:ear=mps-serverapplication-1.4-SNAPSHOT.ear,jar=mps-dataaccess-1.4-SNAPSHOT.jar,name=AdministratorServiceBean,service=EJB3
with dependencies:
  | 18:15:16,332 INFO  [JmxKernelAbstraction]
	jboss.j2ee:ear=mps-serverapplication-1.4-SNAPSHOT.ear,jar=mps-dataaccess-1.4-SNAPSHOT.jar,name=EventLoggerServiceBean,service=EJB3
  | 18:15:16,332 INFO  [JmxKernelAbstraction] creating wrapper delegate for:
org.jboss.ejb3.stateless.StatelessContainer
  | 18:15:16,332 INFO  [JmxKernelAbstraction] installing MBean:
jboss.j2ee:ear=mps-serverapplication-1.4-SNAPSHOT.ear,jar=mps-dataaccess-1.4-SNAPSHOT.jar,name=ClerkServiceBean,service=EJB3
with dependencies:
  | 18:15:16,332 INFO  [JmxKernelAbstraction]
	jboss.j2ee:ear=mps-serverapplication-1.4-SNAPSHOT.ear,jar=mps-dataaccess-1.4-SNAPSHOT.jar,name=EventLoggerServiceBean,service=EJB3
  | 18:15:16,332 INFO  [JmxKernelAbstraction] creating wrapper delegate for:
org.jboss.ejb3.stateless.StatelessContainer
  | 18:15:16,332 INFO  [JmxKernelAbstraction] installing MBean:
jboss.j2ee:ear=mps-serverapplication-1.4-SNAPSHOT.ear,jar=mps-dataaccess-1.4-SNAPSHOT.jar,name=EventLoggerServiceBean,service=EJB3
with dependencies:
  | 18:15:16,347 INFO  [EJBContainer] STARTED EJB:
com.cellactive.mp.server.dao.EventLoggerServiceBean ejbName: EventLoggerServiceBean
  | 18:15:16,363 INFO  [EJBContainer] STARTED EJB:
com.cellactive.mp.server.admin.dao.AdministratorServiceBean ejbName:
AdministratorServiceBean
  | 18:15:16,394 INFO  [EJBContainer] STARTED EJB:
com.cellactive.mp.server.clerk.dao.ClerkServiceBean ejbName: ClerkServiceBean
  | 18:15:16,425 INFO  [JmxKernelAbstraction] creating wrapper delegate for:
org.jboss.ejb3.stateless.StatelessContainer
  | 18:15:16,425 INFO  [JmxKernelAbstraction] installing MBean:
jboss.j2ee:ear=mps-serverapplication-1.4-SNAPSHOT.ear,jar=mps-dataaccess-1.4-SNAPSHOT.jar,name=AccountInformationServiceBean,service=EJB3
with dependencies:
  | 18:15:16,425 INFO  [EJBContainer] STARTED EJB:
com.cellactive.mp.server.paymentparty.dao.AccountInformationServiceBean ejbName:
AccountInformationServiceBean
  | 18:15:16,441 INFO  [JmxKernelAbstraction] creating wrapper delegate for:
org.jboss.ejb3.stateless.StatelessContainer
  | 18:15:16,441 INFO  [JmxKernelAbstraction] installing MBean:
jboss.j2ee:ear=mps-serverapplication-1.4-SNAPSHOT.ear,jar=mps-dataaccess-1.4-SNAPSHOT.jar,name=PaymentAccountServiceBean,service=EJB3
with dependencies:
  | 18:15:16,441 INFO  [JmxKernelAbstraction]
	jboss.j2ee:ear=mps-serverapplication-1.4-SNAPSHOT.ear,jar=mps-dataaccess-1.4-SNAPSHOT.jar,name=EventLoggerServiceBean,service=EJB3
  | 18:15:16,457 INFO  [EJBContainer] STARTED EJB:
com.cellactive.mp.server.paymentparty.dao.PaymentAccountServiceBean ejbName:
PaymentAccountServiceBean
  | 18:15:16,472 INFO  [JmxKernelAbstraction] creating wrapper delegate for:
org.jboss.ejb3.stateless.StatelessContainer
  | 18:15:16,472 INFO  [JmxKernelAbstraction] installing MBean:
jboss.j2ee:ear=mps-serverapplication-1.4-SNAPSHOT.ear,jar=mps-dataaccess-1.4-SNAPSHOT.jar,name=PaymentPartyServiceBean,service=EJB3
with dependencies:
  | 18:15:16,472 INFO  [JmxKernelAbstraction]
	jboss.j2ee:ear=mps-serverapplication-1.4-SNAPSHOT.ear,jar=mps-dataaccess-1.4-SNAPSHOT.jar,name=EventLoggerServiceBean,service=EJB3
  | 18:15:16,488 INFO  [EJBContainer] STARTED EJB:
com.cellactive.mp.server.paymentparty.dao.PaymentPartyServiceBean ejbName:
PaymentPartyServiceBean
  | 18:15:16,488 INFO  [JmxKernelAbstraction] creating wrapper delegate for:
org.jboss.ejb3.stateless.StatelessContainer
  | 18:15:16,488 INFO  [JmxKernelAbstraction] installing MBean:
jboss.j2ee:ear=mps-serverapplication-1.4-SNAPSHOT.ear,jar=mps-dataaccess-1.4-SNAPSHOT.jar,name=SpendingLimitServiceBean,service=EJB3
with dependencies:
  | 18:15:16,504 INFO  [EJBContainer] STARTED EJB:
com.cellactive.mp.server.paymentparty.dao.SpendingLimitServiceBean ejbName:
SpendingLimitServiceBean
  | 18:15:16,519 INFO  [JmxKernelAbstraction] creating wrapper delegate for:
org.jboss.ejb3.stateless.StatelessContainer
  | 18:15:16,519 INFO  [JmxKernelAbstraction] installing MBean:
jboss.j2ee:ear=mps-serverapplication-1.4-SNAPSHOT.ear,jar=mps-dataaccess-1.4-SNAPSHOT.jar,name=TerminalDeviceServiceBean,service=EJB3
with dependencies:
  | 18:15:16,519 INFO  [JmxKernelAbstraction]
	jboss.j2ee:ear=mps-serverapplication-1.4-SNAPSHOT.ear,jar=mps-dataaccess-1.4-SNAPSHOT.jar,name=EventLoggerServiceBean,service=EJB3
  | 18:15:16,535 INFO  [EJBContainer] STARTED EJB:
com.cellactive.mp.server.paymentparty.dao.TerminalDeviceServiceBean ejbName:
TerminalDeviceServiceBean
  | 18:15:16,535 INFO  [JmxKernelAbstraction] creating wrapper delegate for:
org.jboss.ejb3.stateless.StatelessContainer
  | 18:15:16,535 INFO  [JmxKernelAbstraction] installing MBean:
jboss.j2ee:ear=mps-serverapplication-1.4-SNAPSHOT.ear,jar=mps-dataaccess-1.4-SNAPSHOT.jar,name=UserMaintenanceServiceBean,service=EJB3
with dependencies:
  | 18:15:16,535 INFO  [EJBContainer] STARTED EJB:
com.cellactive.mp.server.user.dao.UserMaintenanceServiceBean ejbName:
UserMaintenanceServiceBean
  | 18:15:16,550 INFO  [EJB3Deployer] Deployed:
file:/C:/server/Cellactive-Server/server/default/deploy/mps-serverapplication-1.4-SNAPSHOT.ear/mps-dataaccess-1.4-SNAPSHOT.jar
  | 18:15:16,550 INFO  [JmxKernelAbstraction] creating wrapper delegate for:
org.jboss.ejb3.entity.PersistenceUnitDeployment
  | 18:15:16,550 INFO  [JmxKernelAbstraction] installing MBean:
persistence.units:ear=mps-serverapplication-1.4-SNAPSHOT.ear,unitName=MpsDataModel with
dependencies:
  | 18:15:16,550 INFO  [JmxKernelAbstraction]
	jboss.jca:name=MPS-DS,service=DataSourceBinding
  | 18:15:16,550 INFO  [PersistenceUnitDeployment] Starting persistence unit
persistence.units:ear=mps-serverapplication-1.4-SNAPSHOT.ear,unitName=MpsDataModel
  | 18:15:16,550 WARN  [ServiceController] Problem starting service
persistence.units:ear=mps-serverapplication-1.4-SNAPSHOT.ear,unitName=MpsDataModel
  | javax.naming.NoInitialContextException: Need to specify class name in environment or
system property, or as an applet parameter, or in an application resource file: 
java.naming.factory.initial
  | 	at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:645)
  | 	at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:247)
  | 	at javax.naming.InitialContext.getURLOrDefaultInitCtx(InitialContext.java:284)
  | 	at javax.naming.InitialContext.lookup(InitialContext.java:351)
  | 	at
org.jboss.ejb3.entity.PersistenceUnitDeployment.start(PersistenceUnitDeployment.java:216)
  | 	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:103)
  | 	at
org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)
  | 	at
org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)
  | 	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: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.GeneratedMethodAccessor8.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 $Proxy235.start(Unknown Source)
  | 	at org.jboss.ejb3.JmxKernelAbstraction.install(JmxKernelAbstraction.java:120)
  | 	at org.jboss.ejb3.Ejb3Deployment.startPersistenceUnits(Ejb3Deployment.java:627)
  | 	at org.jboss.ejb3.Ejb3Deployment.start(Ejb3Deployment.java:351)
  | 	at org.jboss.ejb3.Ejb3Module.startService(Ejb3Module.java:91)
  | 	at
org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)
  | 	at
org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)
  | 	at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
  | 	at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  | 	at java.lang.reflect.Method.invoke(Method.java:585)
  | 	at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
  | 	at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
  | 	at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
  | 	at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
  | 	at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
  | 	at
org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:978)
  | 	at $Proxy0.start(Unknown Source)
  | 	at org.jboss.system.ServiceController.start(ServiceController.java:417)
  | 	at sun.reflect.GeneratedMethodAccessor8.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 $Proxy33.start(Unknown Source)
  | 	at org.jboss.ejb3.EJB3Deployer.start(EJB3Deployer.java:512)
  | 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  | 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
  | 	at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  | 	at java.lang.reflect.Method.invoke(Method.java:585)
  | 	at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
  | 	at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
  | 	at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
  | 	at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
  | 	at
org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)
  | 	at org.jboss.mx.interceptor.DynamicInterceptor.invoke(DynamicInterceptor.java:97)
  | 	at
org.jboss.system.InterceptorServiceMBeanSupport.invokeNext(InterceptorServiceMBeanSupport.java:238)
  | 	at
org.jboss.wsf.container.jboss42.DeployerInterceptor.start(DeployerInterceptor.java:87)
  | 	at
org.jboss.deployment.SubDeployerInterceptorSupport$XMBeanInterceptor.start(SubDeployerInterceptorSupport.java:188)
  | 	at
org.jboss.deployment.SubDeployerInterceptor.invoke(SubDeployerInterceptor.java:95)
  | 	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 $Proxy34.start(Unknown Source)
  | 	at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1025)
  | 	at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1015)
  | 	at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:819)
  | 	at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:782)
  | 	at sun.reflect.GeneratedMethodAccessor23.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 $Proxy9.deploy(Unknown Source)
  | 	at
org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScanner.java:421)
  | 	at
org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java:634)
  | 	at
org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan(AbstractDeploymentScanner.java:263)
  | 	at
org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.loop(AbstractDeploymentScanner.java:274)
  | 	at
org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.run(AbstractDeploymentScanner.java:225)
  | 18:15:16,550 INFO  [EJB3Deployer] Deployed:
file:/C:/server/Cellactive-Server/server/default/deploy/mps-serverapplication-1.4-SNAPSHOT.ear/mps-datamodel-1.4-SNAPSHOT.jar
  | 18:15:16,597 INFO  [JmxKernelAbstraction] creating wrapper delegate for:
org.jboss.ejb3.service.ServiceContainer
  | 18:15:16,597 INFO  [JmxKernelAbstraction] installing MBean:
jboss.j2ee:ear=mps-serverapplication-1.4-SNAPSHOT.ear,jar=mps-management-1.4-SNAPSHOT.jar,name=AdministratorManagementBean,service=EJB3
with dependencies:

After quite some time I found that it worked, when I manually renamed the JARs so that the
one with the MDB was last
(JBoss scans the JARs in alphabetical order, I don't know if that's OK). It also
worked if everything was merged into one
single JAR.
Further investigations showed that the project with the datamodel (and the
persistence.xml) must come before the one with the MDB.
Altough the latter has no dependencies to the datamodel!

The workaround I found was the following, I added an @Dependency anotation to the MDB:

  | ...
  | @Depends("jboss.j2ee:module=mps-datamodel-1.4-SNAPSHOT.jar,service=EJB3")
  | 

Now it works again. However, I consider this a serious and confusing Bug in JBoss. Unless
you prove it has to be
this way :-)

Cheers
    Markus

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[jboss-user] [EJB/JBoss] - Dependency bug with multiple modules in EAR