i will deploy entity bean in websphere davanced edition 3.5

i becam the flowing error:

java.lang.ClassNotFoundException: COM.ibm.db2.jdbc.DB2XADataSourcejava.sql.SQLException: java.lang.ClassNotFoundException: COM.ibm.db2.jdbc.DB2XADataSource



--------

com.ibm.ejs.sm.client.command.ExecutionException: Fehler beim Unterbefehl des Befehls 'myEJBContainer.start'.


at com.ibm.ejs.sm.client.RepositoryOpException. (RepositoryOpException.java:51)


at com.ibm.ejs.sm.client.command.ExecutionException. (ExecutionException.java:63)


at com.ibm.ejs.sm.client.command.AbstractCommand.handleAct(AbstractCommand.java(Compiled Code))


at com.ibm.ejs.sm.client.command.StartCommand.execute(StartCommand.java:93)


at com.ibm.ejs.sm.client.command.CommandManager$ExecutionThread.run(CommandManager.java:264)


at com.ibm.ejs.sm.client.command.ThreadPool$PooledThread.run(ThreadPool.java(Compiled Code))













I tested servlet with the same Driver and it functioned , so the classpfad is already set

cansomeone help me