Hi,
I'm trying to populate the jboss default DB
(Hypersonic)
using CMR but
it doesn't work (I use JBoss 3.0):
I have 2 entity bean (Person and Element) which
have
a relationship 'one-to-many'
unidirectionnal.
When I deploy my component in jboss, it
automatically
create 2 tables in the DB : Element (with a
relation column)
and Person => OK
When I create a Person entity, jboss just add it
in the Person table =>
OK
When I create an Element entity, jboss just
add it
in the Element table (leaving relation column at
'null').=> OK
(I didn't chose to pass a 'Person' directly in
the ejbCreate()
method of the Element entity bean, but just to
have
setPerson() and
getPerson() methods)
But when I call myElement.setPerson(myPerson), I
get this
error message :
[java] java.rmi.ServerException: RemoteException
occurred in server thread; nested exception
is:
[java] java.rmi.ServerException: null;
CausedByException is:
[java] $Proxy82; nested
exception is:
[java] javax.ejb.EJBException: null;
CausedByException is:
[java] $Proxy82
[java]
java.rmi.ServerException: null; CausedByException
is:
[java] $Proxy82; nested exception
is:
[java] javax.ejb.EJBException: null;
CausedByException is:
[java] $Proxy82
[java]
javax.ejb.EJBException: null; CausedByException
is:
[java]
$Proxy82
[java] at
sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:245)
[java]
at
sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:220)
[java]
at
sun.rmi.server.UnicastRef.invoke(UnicastRef.java:122)
[java]
at org.jboss.invocation.jrmp.server.JRMPInvoker_Stub.invoke(Unknown
Source)
[java] at
org.jboss.invocation.jrmp.interfaces.JRMPInvokerProxy.invoke(JRMPInvokerProxy.java:128)
[java]
at
org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:108)
[java]
at
org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:73)
[java]
at
org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:76)
[java]
at
org.jboss.proxy.ejb.EntityInterceptor.invoke(EntityInterceptor.java:116)
[java]
at
org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:76)
[java]
at $Proxy8.setPerson(Unknown Source)
[java] at
DataPopulate.createElements(DataPopulate.java:397)
[java] at
DataPopulate.main(DataPopulate.java:45)
[java]
java.lang.ClassCastException: $Proxy82
[java]
<<no stack trace available>>
[java]
Could anyone explain to me whats
wrong?
Thanks for any advice.
S.
Chausson
