[rules-users] NPE after rule consequence executes

[Edson Tirelli]

    Can you provide a self contained test to reproduce the problem and
attach it to a JIRA? I will fix it.

    Thanks

    []s
    Edson

2008/4/9 Scott Reed <sreed at avacoda.com>:

>  I am seeing the same ReteTuple.get( Declaration ) NPE when I run the app
> with both 4.0.7 jars.
> If this is a known bug, it appears not to have been fixed in this version.
>
> Edson Tirelli's message received 4/9/2008 8:05 PM:
>
>
>    yes, the error in a test would stop the build process. Use the skip
> option I mentioned in my other e-mail.
>
>    []s
>    Edson
>
> 2008/4/9 Scott Reed <sreed at avacoda.com>:
>
> >  I think the compiler jar failed to build perhaps due to the error?
> >
> > Edson Tirelli's message received 4/9/2008 6:14 PM:
> >
> >
> >    After the build, you can find the jars in:
> >
> > drools-core/target
> > drools-compiler/target
> >
> >    Their version must always match or you will end up with other
> > problems.
> >
> >     []s
> >     Edson
> >
> >
> >
> > 2008/4/9 Scott Reed <sreed at avacoda.com>:
> >
> > > 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.
> > >
> > >    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>:
> > >
> > > > 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>:
> > > >
> > > > > 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
> > > > >
> > > > >            <snip>
>
>
> _______________________________________________
> rules-users mailing list
> rules-users at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>
>


-- 
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
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.jboss.org/pipermail/rules-users/attachments/20080410/5de0cc92/attachment.html