<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">By the way the code looks, I think this only happens when there's no state modifications in the transaction.<div>Can you please confirm that? If so, a workaround would be to do a dummy remove, e.g. for a key you know does not exist.</div><div>Application would be useful as well.</div><div>Mind creating a bug for this one?</div><div><br></div><div>Thank you,</div><div>Mircea</div><div><div><br><div><div>On 14 Apr 2010, at 20:42, Philippe Van Dyck wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite">Sorry, I meant transaction manager ...<div><br></div><div>seems to happen in</div><div><br></div><div><div>&nbsp;&nbsp; &nbsp;if (modifications.isEmpty()) {</div><div>&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; if (trace) log.trace("Transaction has not logged any modifications!");</div>
<div>&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; return;</div><div>&nbsp;&nbsp; &nbsp; &nbsp;}</div></div><div><br><br><div class="gmail_quote">---------- Forwarded message ----------<br>From: <b class="gmail_sendername">Philippe Van Dyck</b> <span dir="ltr">&lt;<a href="mailto:pvdyck@gmail.com">pvdyck@gmail.com</a>&gt;</span><br>
Date: Wed, Apr 14, 2010 at 7:41 PM<br>Subject: NPE ... heeeeelp<br>To: infinispan -Dev List &lt;<a href="mailto:infinispan-dev@lists.jboss.org">infinispan-dev@lists.jboss.org</a>&gt;<br><br><br><span style="font-family:Times;font-size:medium"><pre style="word-wrap:break-word;white-space:pre-wrap">Anyone ?</pre><pre style="word-wrap:break-word;white-space:pre-wrap">Using Atomikos Session manager :</pre><pre style="word-wrap:break-word;white-space:pre-wrap"><br></pre><pre style="word-wrap:break-word;white-space:pre-wrap">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)</pre></span>
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