an entity bean question

[miao wang]

hi, i am a beginner of EJB.
my IDE is jbuilder8. my AS server is weblogic6.1
when i begin my first entity bean, i meet the following mistake. please give me some guide, friends.
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java.rmi.RemoteException: EJB Exception: ; nested exception is:
weblogic.utils.AssertionError: ***** ASSERTION FAILED *****[ Assertion violated ]
at weblogic.rmi.internal.BasicOutboundRequest.sendReceive(BasicOutboundRequest.java:85)
at weblogic.rmi.cluster.ReplicaAwareRemoteRef.invoke(ReplicaAwareRemoteRef.java:253)
at weblogic.rmi.cluster.ReplicaAwareRemoteRef.invoke(ReplicaAwareRemoteRef.java:220)
at weblogic.rmi.internal.ProxyStub.invoke(ProxyStub.java:35)
at $Proxy1.create(Unknown Source)
at testejb.Enterprise4TestClient1.create(Enterprise4TestClient1.java:81)
at testejb.Enterprise4TestClient1.main(Enterprise4TestClient1.java:321)
Caused by: weblogic.utils.AssertionError: ***** ASSERTION FAILED *****[ Assertion violated ]
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[Naidu Jitta]

hai,
U might have used different version of class files(complied with 2 different versions of JVM) in ur application. This could be the reason of this exception....
With Regards,
J. P. Naidu

[miao wang]

thanx. i will try