[jboss-user] [JBoss Getting Started Documentation] - Session bean in jar 1 can't access entity bean in jar 2 alth

soulreaper do-not-reply at jboss.com
Mon Jan 8 17:22:52 EST 2007


Hello Folks

I have a rather basic question concerning the deployment of EJB3 beans. My application consists of three projects: shopdemo-data, shopdemo-business and shopdemo-web, all packaged within their own jars (or war for the web package). I have packaged all three of those archives inside one ear which contains the following application.xml file in the META-INF directory.

<?xml version="1.0" encoding="UTF-8"?>
  | <application xmlns="http://java.sun.com/xml/ns/j2ee"
  |  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="1.4" 
  | xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee 
  | http://java.sun.com/xml/ns/j2ee/application_1_4.xsd">
  |   <display-name>shopdemo</display-name>
  |   <module id="myeclipse.1168274010125">
  |     <web>
  |       <web-uri>shopdemo-web.war</web-uri>
  |       <context-root>/shopdemo</context-root>
  |     </web>
  |   </module>
  |   <module id="myeclipse.1168274038515">
  |     <ejb>shopdemo-business.jar</ejb>
  |   </module>
  |   <module id="myeclipse.1168274010281">
  |     <ejb>shopdemo-data.jar</ejb>
  |   </module>
  | </application>

My session beans in the business project get properly deployed as well as the entity beans in the data project. They are all registered as expected. (imo)

The Problem comes when i access my stateless session beans which in turn  try to access the entity beans. When i do that, i get the following error:

  | Exception in thread "main" javax.ejb.EJBException: java.lang.IllegalArgumentException: Unknown entity: de.iplabs.shop.data.Product
  | 	at org.jboss.ejb3.tx.Ejb3TxPolicy.handleExceptionInOurTx(Ejb3TxPolicy.java:69)
  | 	at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:83)
  | 	at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:191)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 	at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 	at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 	at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77)
  | 	at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:102)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 	at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 	at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 	at org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(StatelessContainer.java:263)
  | 	at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:106)
  | 	at org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invoke(AOPRemotingInvocationHandler.java:82)
  | 	at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:828)
  | 	at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:681)
  | 	at org.jboss.remoting.transport.socket.ServerThread.processInvocation(ServerThread.java:358)
  | 	at org.jboss.remoting.transport.socket.ServerThread.dorun(ServerThread.java:398)
  | 	at org.jboss.remoting.transport.socket.ServerThread.run(ServerThread.java:239)
  | Caused by: java.lang.IllegalArgumentException: Unknown entity: de.iplabs.shop.data.Product
  | 	at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:215)
  | 	at org.jboss.ejb3.entity.TransactionScopedEntityManager.persist(TransactionScopedEntityManager.java:175)
  | 	at de.iplabs.shop.business.ProductManagerBean.createNewProduct(ProductManagerBean.java:32)
  | 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  | 	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
  | 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
  | 	at java.lang.reflect.Method.invoke(Unknown Source)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:112)
  | 	at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:166)
  | 	at org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 	at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 	at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:46)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 	at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:79)
  | 	at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:191)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 	at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 	at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 	at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77)
  | 	at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:102)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 	at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 	at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 	at org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(StatelessContainer.java:263)
  | 	at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:106)
  | 	at org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invoke(AOPRemotingInvocationHandler.java:82)
  | 	at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:828)
  | 	at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:681)
  | 	at org.jboss.remoting.transport.socket.ServerThread.processInvocation(ServerThread.java:358)
  | 	at org.jboss.remoting.transport.socket.ServerThread.dorun(ServerThread.java:398)
  | 	at org.jboss.remoting.transport.socket.ServerThread.run(ServerThread.java:239)
  | 	at org.jboss.remoting.RemoteClientInvoker.invoke(RemoteClientInvoker.java:190)
  | 	at org.jboss.remoting.Client.invoke(Client.java:525)
  | 	at org.jboss.remoting.Client.invoke(Client.java:488)
  | 	at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(InvokeRemoteInterceptor.java:55)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 	at org.jboss.aspects.tx.ClientTxPropagationInterceptor.invoke(ClientTxPropagationInterceptor.java:61)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 	at org.jboss.aspects.security.SecurityClientInterceptor.invoke(SecurityClientInterceptor.java:53)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 	at org.jboss.ejb3.remoting.IsLocalInterceptor.invoke(IsLocalInterceptor.java:77)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 	at org.jboss.ejb3.stateless.StatelessRemoteProxy.invoke(StatelessRemoteProxy.java:102)
  | 	at $Proxy1.createNewProduct(Unknown Source)
  | 	at de.iplabs.shop.client.ShopClient.main(ShopClient.java:31)
  | 

So i guess the entity beans from the data package are not know to the session beans in the buisiness package.

Btw... when i put the entity beans and the session beans in one .jar inside the .ear, they find each other as expected.

I hope anybody can help me out. thanks in advance.

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