Re: [rules-users] NPE after rule consequence executes

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(a)avacoda.com <mailto:sreed@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(a)avacoda.com <mailto:sreed@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(a)avacoda.com >> <mailto:sreed@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. >>> <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(a)avacoda.com >>> <mailto:sreed@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(a)avacoda.com >>>> <mailto:sreed@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(a)lists.jboss.org <mailto:rules-users@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 <http://www.jboss.com> ------------------------------------------------------------------------ _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users