i am using junit and dbunit to test my DAO's i am accessing DB2 by data source. when
i was running the test on WAS6.0 it was running fine. now i am trying to run it on WAS6.1 it is giving following exception

java.lang.NoClassDefFoundError: Invalid Implementation Key, com.ibm.ws.transaction.NonRecovWSTxManager
at com.ibm.ws.Transaction.TransactionManagerFactory.g etUOWCurrent(TransactionManagerFactory.java:125)
at com.ibm.ws.rsadapter.AdapterUtil.(AdapterUtil.java :187)
at java.lang.J9VMInternals.initializeImpl(Native Method)
at java.lang.J9VMInternals.initialize(J9VMInternals.j ava:177)
at com.ibm.ejs.j2c.ConnectionFactoryBuilderImpl.getOb jectInstance(ConnectionFactoryBuilderImpl.java:274 )
at javax.naming.spi.NamingManager.getObjectInstance(N amingManager.java:316)
at com.ibm.ws.naming.util.Helpers.processSerializedOb jectForLookupExt(Helpers.java:894)
... 58 more