Extenral EJB Reference
Hello,
I'm having a hard time accessing an entity bean from a separate session bean in JBoss 2.4.4. Every time I try to access the entity bean's home interface (via the session bean), I get a classNotFound exception on the my.bean.pkg1.EntitybeanHome interface. I can access the entity bean's home interface via a client without a problem. Here's the relevant code (I think...):
MySessionBean's ejb-jar.xml:
...
<ejb-name>MySessBean</ejb-name>
...
<ejb-ref>
<ejb-ref-name>ejb/MyEnt</ejb-ref-name>
<ejb-ref-type>Entity</ejb-ref-type>
my.bean.pkg1.MyEntHome
my.bean.pkg1.MyEnt
</ejb-ref>
...
...
Session Bean's jboss.xml:
...
<ejb-name>MySessBean</ejb-name>
<jndi-name>jn/Sess</jndi-name>
<ejb-ref>
<ejb-ref-name>ejb/MyEnt</ejb-ref-name>
<jndi-name>jn/MyEnt</jndi-name>
</ejb-ref>
...
Entity Bean's jboss.xml:
...
<ejb-name>MyEntBean</ejb-name>
<jndi-name>jn/MyEnt</jndi-name>
...
Finally, the MySessBean lookup code:
I've tried
jndiContext.lookup("java:comp/env/ejb/MyEnt");
,
jndiContext.lookup("jn/MyEnt");
,
and several other strings.
The exception is not thrown when I create a new MyEntHome object... It is only thrown when I try to call a method using the new object.
Thanks very much for any help, I hope this post isn't too confusing...
For what it's worth, here's the server output:
[10:56:55,624,MySessBean] TRANSACTION ROLLBACK EXCEPTION:
javax.transaction.TransactionRolledbackException: null
Embedded Exception
null; nested exception is:
javax.ejb.EJBException: null
Embedded Exception
null
javax.ejb.EJBException: null
Embedded Exception
null
at my.bean.pkg2.MySessBean.method(MySessBean.java:42)
at java.lang.reflect.Method.invoke(Native Method)
at org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invoke(StatelessSessionContainer.java:542)
at org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invoke(StatelessSessionInstanceInterceptor.java:82)
at org.jboss.ejb.plugins.TxInterceptorCMT.invokeNext(TxInterceptorCMT.java(Compiled Code))
at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java(Compiled Code))
at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java(Compiled Code))
at org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java(Compiled Code))
at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java(Compiled Code))
at org.jboss.ejb.StatelessSessionContainer.invoke(StatelessSessionContainer.java:286)
at org.jboss.ejb.plugins.jrmp.server.JRMPContainerInvoker.invoke(JRMPContainerInvoker.java(Compiled Code))
at java.lang.reflect.Method.invoke(Native Method)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java(Compiled Code))
at sun.rmi.transport.Transport$1.run(Transport.java(Compiled Code))
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java(Compiled Code))
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java(Compiled Code))
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:662)
at java.lang.Thread.run(Thread.java:498)
java.lang.ClassNotFoundException: my.bean.pkg1.MyEntHome
at java.net.URLClassLoader.findClass(URLClassLoader.java(Compiled Code))
at java.lang.ClassLoader.loadClass(ClassLoader.java(Compiled Code))
at java.lang.ClassLoader.loadClass(ClassLoader.java(Compiled Code))
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java(Compiled Code))
at sun.rmi.server.MarshalInputStream.resolveProxyClass(MarshalInputStream.java:206)
at java.io.ObjectInputStream.inputProxyClassDescriptor(ObjectInputStream.java:988)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java(Compiled Code))
at java.io.ObjectInputStream.inputObject(ObjectInputStream.java(Compiled Code))
at java.io.ObjectInputStream.inputObject(ObjectInputStream.java(Compiled Code))
at java.io.ObjectInputStream.readObject(ObjectInputStream.java(Compiled Code))
at java.rmi.MarshalledObject.get(MarshalledObject.java(Compiled Code))
at java.rmi.MarshalledObject.get(MarshalledObject.java(Compiled Code))
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:353)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:333)
at javax.naming.InitialContext.lookup(InitialContext.java:351)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:421)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:457)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:333)
at javax.naming.InitialContext.lookup(InitialContext.java:351)
at my.bean.pkg2.MySessBean.method(MySessBean.java:19)
at java.lang.reflect.Method.invoke(Native Method)
at org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invoke(StatelessSessionContainer.java:542)