[infinispan-dev] NPE ... heeeeelp

Anyone ? Using Atomikos Session manager : 21590604 [Atomikos:245] ERROR org.infinispan.transaction.xa.TransactionXaAdapter - Error while processing PrepareCommand java.lang.NullPointerException at org.infinispan.interceptors.CacheStoreInterceptor.prepareCacheLoader(CacheStoreInterceptor.java:240) at org.infinispan.interceptors.CacheStoreInterceptor.visitPrepareCommand(CacheStoreInterceptor.java:167) at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:120) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:118) at org.infinispan.interceptors.base.CommandInterceptor.handleDefault(CommandInterceptor.java:132) at org.infinispan.commands.AbstractVisitor.visitPrepareCommand(AbstractVisitor.java:105) at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:120) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:118) at org.infinispan.interceptors.NotificationInterceptor.visitPrepareCommand(NotificationInterceptor.java:48) at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:120) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:118) at org.infinispan.interceptors.TxInterceptor.visitPrepareCommand(TxInterceptor.java:91) at org.infinispan.interceptors.DistTxInterceptor.visitPrepareCommand(DistTxInterceptor.java:59) at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:120) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:118) at org.infinispan.interceptors.base.CommandInterceptor.handleDefault(CommandInterceptor.java:132) at org.infinispan.commands.AbstractVisitor.visitPrepareCommand(AbstractVisitor.java:105) at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:120) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:118) at org.infinispan.interceptors.InvocationContextInterceptor.handleAll(InvocationContextInterceptor.java:48) at org.infinispan.interceptors.InvocationContextInterceptor.handleDefault(InvocationContextInterceptor.java:34) at org.infinispan.commands.AbstractVisitor.visitPrepareCommand(AbstractVisitor.java:105) at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:120) at org.infinispan.interceptors.InterceptorChain.invoke(InterceptorChain.java:269) at org.infinispan.transaction.xa.TransactionXaAdapter.prepare(TransactionXaAdapter.java:87) at org.infinispan.transaction.xa.TransactionXaAdapter.commit(TransactionXaAdapter.java:97) at com.atomikos.datasource.xa.XAResourceTransaction.commit(XAResourceTransaction.java:967) at com.atomikos.icatch.imp.CommitMessage.send(CommitMessage.java:94) at com.atomikos.icatch.imp.PropagationMessage.submit(PropagationMessage.java:86) at com.atomikos.icatch.imp.Propagator$PropagatorThread.run(Propagator.java:62) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:619)