1 Reply Latest reply on Jan 23, 2007 6:23 AM by Yves de Montbrun

    Session bean in jar 1 can't access entity bean in jar 2 alth

    Not Saying Newbie

      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.