[rules-users] NPE after rule consequence executes
Scott Reed
sreed at avacoda.com
Wed Apr 9 17:25:33 EDT 2008
I built it but can only find the core jar file, nothing for the
compiler. With just the core jar replaced, I still get the NPE.
Edson Tirelli's message received 4/9/2008 2:24 PM:
>
> Nope, only source code.
> Problem is 4.0.x will be released as 4.0.7, and if your specific
> problem is fixed and you are not able to test before the release, it
> will have to wait 4.0.8. <http://4.0.8.>
>
> All you need to build drools is java, maven and ant. Can you set
> this up?
>
> []s
> Edson
>
>
> 2008/4/9 Scott Reed <sreed at avacoda.com <mailto:sreed at avacoda.com>>:
>
> Glad to hear that. However, I am not set up to do my own drools
> build and it looks like the link you sent is for the source. Is
> there a set of jars for 4.0.x that I can test from? Here is what I
> am using now:
>
> antlr-runtime-3.0.jar
> core-3.2.3.v_686_R32x.jar
> drools-compiler-4.0.4.jar
> drools-core-4.0.4.jar
> mvel14-1.2.21.jar
> xstream-1.2.2.jar
>
> Thanks,
> Scott
>
> Edson Tirelli's message received 4/9/2008 11:46 AM:
>>
>> Scott,
>>
>> I believe this is fixed already. Can you try it out and let us
>> know?
>>
>> http://anonsvn.labs.jboss.com/labs/jbossrules/branches/4.0.x/
>>
>> []s
>> Edson
>>
>>
>> 2008/4/8 Scott Reed <sreed at avacoda.com <mailto:sreed at avacoda.com>>:
>>
>> Sorry, the NPE is in ReteTuple.get(Declaration)
>>
>> Scott Reed's message received 4/8/2008 7:38 PM:
>>
>> Running Drools 4.0.3, on Win 2k sp4, JDK 1.6.0_03.
>>
>> I am getting this exception after the debugger shows
>> execution has gone past the end of the rule. The
>> exception is occurring in ReteTuple.get(Descriptor). I
>> believe the descriptor argument is null. Can anyone
>> suggest why this might be happening and what I can do to
>> avoid it?
>> Thanks,
>> Scott
>>
>> java.lang.NullPointerException
>> at org.drools.reteoo.ReteTuple.get(ReteTuple.java:97)
>> at
>> org.fp.findata.Rule_2MS__Calculate_now_scheduled_or_periodic_transaction_0ConsequenceInvoker.evaluate(Rule_2MS__Calculate_now_scheduled_or_periodic_transaction_0ConsequenceInvoker.java:19)
>>
>> at
>> org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:550)
>> at
>> org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:514)
>> at
>> org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:471)
>>
>> at
>> org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:433)
>>
>> at
>> org.fp.rules.RuleEngineManager$RunTask.run(RuleEngineManager.java:225)
>> org.drools.spi.ConsequenceException:
>> java.lang.NullPointerException
>> at
>> org.drools.base.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:14)
>>
>> at
>> org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:554)
>> at
>> org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:514)
>> at
>> org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:471)
>>
>> at
>> org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:433)
>>
>> at
>> org.fp.rules.RuleEngineManager$RunTask.run(RuleEngineManager.java:225)
>> Caused by: java.lang.NullPointerException
>> at org.drools.reteoo.ReteTuple.get(ReteTuple.java:97)
>> at
>> org.fp.findata.Rule_2MS__Calculate_now_scheduled_or_periodic_transaction_0ConsequenceInvoker.evaluate(Rule_2MS__Calculate_now_scheduled_or_periodic_transaction_0ConsequenceInvoker.java:19)
>>
>> at
>> org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:550)
>> ... 4 more
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>>
>>
>>
>> --
>> Edson Tirelli
>> JBoss Drools Core Development
>> Office: +55 11 3529-6000
>> Mobile: +55 11 9287-5646
>> JBoss, a division of Red Hat @ www.jboss.com <http://www.jboss.com>
>> ------------------------------------------------------------------------
>> _______________________________________________ rules-users
>> mailing list rules-users at lists.jboss.org
>> <mailto:rules-users at lists.jboss.org>
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>
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>
>
> --
> Edson Tirelli
> JBoss Drools Core Development
> Office: +55 11 3529-6000
> Mobile: +55 11 9287-5646
> JBoss, a division of Red Hat @ www.jboss.com <http://www.jboss.com>
> ------------------------------------------------------------------------
>
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