[rules-users] NPE after rule consequence executes
Scott Reed
sreed at avacoda.com
Wed Apr 9 18:10:37 EDT 2008
I noticed one error in the build:
-------------------------------------------------------------------------------
Test set: org.drools.integrationtests.DynamicRulesTest
-------------------------------------------------------------------------------
Tests run: 16, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 2.5 sec
<<< FAILURE!
testDynamicFunction(org.drools.integrationtests.DynamicRulesTest) Time
elapsed: 0.062 sec <<< ERROR!
java.lang.NoClassDefFoundError: org/drools/test/AddFive
at
org.drools.test.Rule_global_rule_test_0.consequence(Rule_global_rule_test_0.java:9)
at
org.drools.test.Rule_global_rule_test_0ConsequenceInvoker.evaluate(Rule_global_rule_test_0ConsequenceInvoker.java:20)
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:477)
at
org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:439)
at
org.drools.integrationtests.DynamicRulesTest.testDynamicFunction(DynamicRulesTest.java:311)
Scott Reed's message received 4/9/2008 5:25 PM:
> 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>
>>> https://lists.jboss.org/mailman/listinfo/rules-users
>>
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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
>> https://lists.jboss.org/mailman/listinfo/rules-users
>>
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