<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div style="-webkit-text-size-adjust: auto;">Using 5.6.0-SNAPSHOT we sometimes are seeing the error below. It doesn't happen all the time. </div><div style="-webkit-text-size-adjust: auto;">Is this just a harmless warning or is it a real problem?</div><div style="-webkit-text-size-adjust: auto;"><br></div><div><div><font style="-webkit-text-size-adjust: auto; background-color: rgba(255, 255, 255, 0);">11:26:53.829 WARN [Thread-2] s.rule.constraint.MvelConstraint - Exception jitting: executionReport != this && $complianceId2 == complianceId2 && $realSeqNo > realSeqNo</font></div><div><span style="-webkit-text-size-adjust: auto; background-color: rgba(255, 255, 255, 0);">java.lang.NullPointerException</span></div><div><span style="-webkit-text-size-adjust: auto; background-color: rgba(255, 255, 255, 0);"> at org.drools.base.defaultpkg.ClientFill1712121$getComplianceId2.getValue(Unknown Source)</span></div><div><span style="-webkit-text-size-adjust: auto; background-color: rgba(255, 255, 255, 0);"> at org.drools.base.ClassFieldReader.getValue(ClassFieldReader.java:87)</span></div><div><span style="-webkit-text-size-adjust: auto; background-color: rgba(255, 255, 255, 0);"> at org.drools.rule.Declaration.getValue(Declaration.java:233)</span></div><div><span style="-webkit-text-size-adjust: auto; background-color: rgba(255, 255, 255, 0);"> at org.drools.base.mvel.MVELCompilationUnit.updateFactory(MVELCompilationUnit.java:344)</span></div><div><span style="-webkit-text-size-adjust: auto; background-color: rgba(255, 255, 255, 0);"> at org.drools.base.mvel.MVELCompilationUnit.updateFactory(MVELCompilationUnit.java:289)</span></div><div><span style="-webkit-text-size-adjust: auto; background-color: rgba(255, 255, 255, 0);"> at org.drools.rule.constraint.MvelConditionEvaluator.evaluate(MvelConditionEvaluator.java:62)</span></div><div><span style="-webkit-text-size-adjust: auto; background-color: rgba(255, 255, 255, 0);"> at org.drools.rule.constraint.MvelConditionEvaluator.ensureBranchEvaluation(MvelConditionEvaluator.java:120)</span></div><div><span style="-webkit-text-size-adjust: auto; background-color: rgba(255, 255, 255, 0);"> at org.drools.rule.constraint.MvelConditionEvaluator.ensureCompleteEvaluation(MvelConditionEvaluator.java:105)</span></div><div><span style="-webkit-text-size-adjust: auto; background-color: rgba(255, 255, 255, 0);"> at org.drools.rule.constraint.MvelConditionEvaluator.ensureCompleteEvaluation(MvelConditionEvaluator.java:93)</span></div><div><span style="-webkit-text-size-adjust: auto; background-color: rgba(255, 255, 255, 0);"> at org.drools.rule.constraint.MvelConditionEvaluator.getAnalyzedCondition(MvelConditionEvaluator.java:85)</span></div><div><span style="-webkit-text-size-adjust: auto; background-color: rgba(255, 255, 255, 0);"> at org.drools.rule.constraint.MvelConstraint.executeJitting(MvelConstraint.java:284)</span></div><div><span style="-webkit-text-size-adjust: auto; background-color: rgba(255, 255, 255, 0);"> at org.drools.rule.constraint.MvelConstraint.access$200(MvelConstraint.java:54)</span></div><div><span style="-webkit-text-size-adjust: auto; background-color: rgba(255, 255, 255, 0);"> at org.drools.rule.constraint.MvelConstraint$ConditionJitter.run(MvelConstraint.java:263)</span></div><div><span style="-webkit-text-size-adjust: auto; background-color: rgba(255, 255, 255, 0);"> at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)</span></div><div><span style="-webkit-text-size-adjust: auto; background-color: rgba(255, 255, 255, 0);"> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)</span></div><div><span style="-webkit-text-size-adjust: auto; background-color: rgba(255, 255, 255, 0);"> at java.lang.Thread.run(Thread.java:662)</span></div><div><font style="-webkit-text-size-adjust: auto; background-color: rgba(255, 255, 255, 0);"> </font></div></div><div style="-webkit-text-size-adjust: auto;"><br>Sent from my iPhone</div><div style="-webkit-text-size-adjust: auto;"><br>On Aug 5, 2013, at 3:09 PM, Mark Proctor <<a href="mailto:mproctor@codehaus.org">mproctor@codehaus.org</a>> wrote:<br><br></div><blockquote type="cite" style="-webkit-text-size-adjust: auto;"><div><meta http-equiv="Content-Type" content="text/html charset=us-ascii"><br><div><div>On 5 Aug 2013, at 19:48, Ming Fang <<a href="mailto:mingfang@mac.com">mingfang@mac.com</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><meta http-equiv="content-type" content="text/html; charset=utf-8"><div dir="auto"><div>Version 5.6.0-SNAPSHOT fixes the problem. </div><div>We're experiencing this problem in our Production environment and needs to address it as soon as possible. </div><div><br></div><div>When is 5.6.0 scheduled to be released?<br></div></div></blockquote>We've been trying to schedule a release for some time now - but community releases are best effort, and a new bug that needs fixing keeps coming up. I'd say realistically I hope within next two weeks, but cannot guarantee that.</div><div><br></div><div>Mark<br><blockquote type="cite"><div dir="auto"><div><br>Sent from my iPhone</div><div><br>On May 11, 2013, at 4:56 PM, Davide Sottara <<a href="mailto:dsotty@gmail.com">dsotty@gmail.com</a>> wrote:<br><br></div><blockquote type="cite">
<meta content="text/html; charset=ISO-8859-1" http-equiv="Content-Type">
<div class="moz-cite-prefix">Did you try 5.6.0-SNAPSHOT? <br>
Many possibly related bugs have been fixed there, and it's about
to be released as 5.6.0.Final.<br>
On the other hand, if you could help us identify your issue by
providing some more context,<br>
we'd try to make sure that a fix is included in 5.6.0.Final<br>
Thanks<br>
Davide <br>
<br>
On 05/11/2013 02:14 PM, Ming Fang wrote:<br>
</div>
<blockquote cite="mid:DD1B8FEC-D334-413E-BBDF-6D3E9655AFC1@mac.com" type="cite">
<meta http-equiv="content-type" content="text/html;
charset=ISO-8859-1">
<div>We did not explicitly enable multithread mode, unless it's on
by default. </div>
<div>Also we're only using Drools in a single thread.<br>
<br>
Sent from my iPad</div>
<div><br>
On May 11, 2013, at 1:05 PM, Mark Proctor <<a moz-do-not-send="true" href="mailto:mproctor@codehaus.org">mproctor@codehaus.org</a>>
wrote:<br>
<br>
</div>
<blockquote type="cite">
<div>
<meta http-equiv="Content-Type" content="text/html;
charset=ISO-8859-1">
It's used for indexing in joins.
<div><br>
</div>
<div>It looks like you are using the experimental
multi-threading mode, I'd recommend you disable that, and
try the latest 5.6.0.SNAPSHOT builds if you have problems.</div>
<div><br>
</div>
<div>Mark<br>
<div>
<div>On 11 May 2013, at 17:01, Ming Fang <<a moz-do-not-send="true" href="mailto:mingfang@mac.com">mingfang@mac.com</a>>
wrote:</div>
<br class="Apple-interchange-newline">
<blockquote type="cite">
<meta http-equiv="Content-Type" content="text/html;
charset=ISO-8859-1">
<div style="word-wrap: break-word; -webkit-nbsp-mode:
space; -webkit-line-break: after-white-space; ">
<div><span style="font-family: Arial, FreeSans,
Helvetica, sans-serif; font-size: 13px;
line-height: 17px; background-color: rgb(240, 240,
240); ">What is the purpose of </span><span style="background-color: rgb(240, 240, 240);
font-family: Arial, FreeSans, Helvetica,
sans-serif; font-size: 13px; line-height: 17px; ">RightTupleIndexHashTable?</span></div>
<div><font face="Arial, FreeSans, Helvetica,
sans-serif"><span style="font-size: 13px;
line-height: 17px;">We are getting the exception
below but unable to come up with a self
contained unit test to demonstrate the problem.</span></font></div>
<div><font face="Arial, FreeSans, Helvetica,
sans-serif"><span style="font-size: 13px;
line-height: 17px;"><br>
</span></font></div>
<span style="font-family: Arial, FreeSans, Helvetica,
sans-serif; font-size: 13px; line-height: 17px;
background-color: rgb(240, 240, 240); ">Caused by:
java.lang.NullPointerException: null</span><br style="font-family: Arial, FreeSans, Helvetica,
sans-serif; font-size: 13px; line-height: 17px;
background-color: rgb(240, 240, 240); ">
<span style="font-family: Arial, FreeSans, Helvetica,
sans-serif; font-size: 13px; line-height: 17px;
background-color: rgb(240, 240, 240); ">at
org.drools.core.util.index.RightTupleIndexHashTable.removeAdd(RightTupleIndexHashTable.java:344)
~</span><span class="error" style="font-family:
Arial, FreeSans, Helvetica, sans-serif; font-size:
13px; line-height: 17px; background-color: rgb(240,
240, 240); ">[drools-core-5.5.0.Final.jar:5.5.0.Final]</span><br style="font-family: Arial, FreeSans, Helvetica,
sans-serif; font-size: 13px; line-height: 17px;
background-color: rgb(240, 240, 240); ">
<span style="font-family: Arial, FreeSans, Helvetica,
sans-serif; font-size: 13px; line-height: 17px;
background-color: rgb(240, 240, 240); ">at
org.drools.reteoo.JoinNode.modifyRightTuple(JoinNode.java:224)
~</span><span class="error" style="font-family:
Arial, FreeSans, Helvetica, sans-serif; font-size:
13px; line-height: 17px; background-color: rgb(240,
240, 240); ">[drools-core-5.5.0.Final.jar:5.5.0.Final]</span><br style="font-family: Arial, FreeSans, Helvetica,
sans-serif; font-size: 13px; line-height: 17px;
background-color: rgb(240, 240, 240); ">
<span style="font-family: Arial, FreeSans, Helvetica,
sans-serif; font-size: 13px; line-height: 17px;
background-color: rgb(240, 240, 240); ">at
org.drools.reteoo.PropagationQueuingNode$ModifyToSinkAction.execute(PropagationQueuingNode.java:513)
~</span><span class="error" style="font-family:
Arial, FreeSans, Helvetica, sans-serif; font-size:
13px; line-height: 17px; background-color: rgb(240,
240, 240); ">[drools-core-5.5.0.Final.jar:5.5.0.Final]</span><br style="font-family: Arial, FreeSans, Helvetica,
sans-serif; font-size: 13px; line-height: 17px;
background-color: rgb(240, 240, 240); ">
<span style="font-family: Arial, FreeSans, Helvetica,
sans-serif; font-size: 13px; line-height: 17px;
background-color: rgb(240, 240, 240); ">at
org.drools.reteoo.PropagationQueuingNode.propagateActions(PropagationQueuingNode.java:280)
~</span><span class="error" style="font-family:
Arial, FreeSans, Helvetica, sans-serif; font-size:
13px; line-height: 17px; background-color: rgb(240,
240, 240); ">[drools-core-5.5.0.Final.jar:5.5.0.Final]</span><br style="font-family: Arial, FreeSans, Helvetica,
sans-serif; font-size: 13px; line-height: 17px;
background-color: rgb(240, 240, 240); ">
<span style="font-family: Arial, FreeSans, Helvetica,
sans-serif; font-size: 13px; line-height: 17px;
background-color: rgb(240, 240, 240); ">at
org.drools.reteoo.PropagationQueuingNode$PropagateAction.execute(PropagationQueuingNode.java:588)
~</span><span class="error" style="font-family:
Arial, FreeSans, Helvetica, sans-serif; font-size:
13px; line-height: 17px; background-color: rgb(240,
240, 240); ">[drools-core-5.5.0.Final.jar:5.5.0.Final]</span><br style="font-family: Arial, FreeSans, Helvetica,
sans-serif; font-size: 13px; line-height: 17px;
background-color: rgb(240, 240, 240); ">
<span style="font-family: Arial, FreeSans, Helvetica,
sans-serif; font-size: 13px; line-height: 17px;
background-color: rgb(240, 240, 240); ">at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:993) </span><span class="error" style="font-family: Arial, FreeSans,
Helvetica, sans-serif; font-size: 13px; line-height:
17px; background-color: rgb(240, 240, 240); ">[drools-core-5.5.0.Final.jar:5.5.0.Final]</span></div>
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