Strange problem with local class incompatible

[ilea_alexandru]

Hello ! I've been having this problem for long time and it's still unsolved.
The problem consists of an EJB that has a method that deletes all the references to a certain database - it closes all the active session factories (hibernate) , removes the datasource xml file from the deploy directory, deletes the database from a JDBC connection and then removes the object that contains information about the connection URL to the database from the hashmap.
The client would invoke this EJB method 2-3 times, and the last time a RMIException is thrown :

java.rmi.UnmarshalException: Error unmarshaling return; nested exception is:
java.io.InvalidClassException: javax.resource.ResourceException; local class incompatible: stream classdesc serialVersionUID = -1809703985388987999, local class serialVersionUID = 4770679801401540475
at sun.rmi.transport.StreamRemoteCall.executeCall(Unknown Source)
at sun.rmi.server.UnicastRef.invoke(Unknown Source)
at org.jboss.invocation.jrmp.server.JRMPInvoker_Stub.invoke(Unknown Source)
at org.jboss.invocation.jrmp.interfaces.JRMPInvokerProxy.invoke(JRMPInvokerProxy.java:135)
at org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:96)
at org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:46)
at org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:53)
at org.jboss.proxy.ejb.StatefulSessionInterceptor.invoke(StatefulSessionInterceptor.java:104)
at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:85)
at $Proxy1.stergeBazaDate(Unknown Source)
.............................

When setting the JBoss log for org.jboss.resource.connectionmanager.JBossManagedConnectionPool to DEBUG, i can see this error message in the log:

2005-03-17 16:57:40,125 DEBUG [org.jboss.util.NestedThrowable] org.jboss.util.NestedThrowable.parentTraceEnabled=true
2005-03-17 16:57:40,125 DEBUG [org.jboss.util.NestedThrowable] org.jboss.util.NestedThrowable.nestedTraceEnabled=false
2005-03-17 16:57:40,125 DEBUG [org.jboss.util.NestedThrowable] org.jboss.util.NestedThrowable.detectDuplicateNesting=true


When the last attempt fails, the client loses the connection with the EJB and can't do anything. Can anyone help me with this issue please? Thank you !

[starksm64]

As the exception indicates, there are incompatible versions of the javax.resource.ResourceException on the client and server. This class did not have a serialVersionUID set so it was floating between releases depending on whether or not changes had been introduced. This will be corrected for the 4.0.2 release, but for now the client and server jars need to be in synch.

[ilea_alexandru]

Thank you a lot ! The problem is now solved :)