Hi-, I think I had similar issue and resolved by looking at one of these: 1. How the changes set is loaded: Resource changeset = ResourceFactory.newFileResource(changeSetFilePath); //.newClassPathResource(changeSetPath); 2.If the package not yet built, In GUVNOR, I go to 'knowledgebase'/ click on you package/click on the 'edit' tab on the right/ click build package ( I also do create snapshot but may not be necessary ). See if it helps. G- -----Original Message----- From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of calcacuervo Sent: Monday, August 26, 2013 10:26 PM To: rules-users(a)lists.jboss.org Subject: [rules-users] Problem with PKG from guvnor Hi Guys, I am having a problem using Drools 5.5. Basically, I have a ksession in stream mode. I have a rule with an event, like this when myfact: EventA( main > 21 ) over window:length (1) myfact2 : EventA( main <= 21 , this before myfact ) over window:length (2) I also use a KnowledgeAgent and apply a changeset. If I declare this rule directly from the changeset, as a Classpath resource, with resource type DRL, it seems to work fine (the kbase compiles!). But If I have the rule in a guvnor package, and I put the PKG link in my changeset, I am getting an error: Caused by: java.lang.NullPointerException at org.drools.base.evaluators.BeforeEvaluatorDefinition$BeforeEvaluator.getInterval(BeforeEvaluatorDefinition.java:268) [drools-core-5.5.0.Final.jar:5.5.0.Final] at org.drools.rule.constraint.EvaluatorConstraint.getInterval(EvaluatorConstraint.java:100) [drools-core-5.5.0.Final.jar:5.5.0.Final] at org.drools.reteoo.builder.BuildUtils.gatherTemporalRelationships(BuildUtils.java:326) [drools-core-5.5.0.Final.jar:5.5.0.Final] at org.drools.reteoo.builder.BuildUtils.calculateTemporalDistance(BuildUtils.java:292) [drools-core-5.5.0.Final.jar:5.5.0.Final] at org.drools.reteoo.builder.ReteooRuleBuilder.addRule(ReteooRuleBuilder.java:119) [drools-core-5.5.0.Final.jar:5.5.0.Final] at org.drools.reteoo.ReteooBuilder.addRule(ReteooBuilder.java:113) [drools-core-5.5.0.Final.jar:5.5.0.Final] at org.drools.reteoo.ReteooRuleBase.addRule(ReteooRuleBase.java:445) [drools-core-5.5.0.Final.jar:5.5.0.Final] It seems that that getOperator() is null in this evaluation: if ( this.getOperator().isNegated() ) { I debugged a bit, and it seems the evaluator comes in serialized from guvnor's package.But in case of getting directly the classpath resource, it compiles the package and it gets the real operator ok (Operator = 'before') Do you have any idea of why it could be happening? May I be doing something wrong? Is this a bug in guvnor? Thanks in advance! Demian -- View this message in context: http://drools.46999.n3.nabble.com/Problem-with-PKG-from-guvnor-tp4025687.... Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

Good to hear that. Thanks Demian. Question - I am new to drools/guvnor so never used the EventProcessingOption.STREAM processing mode. It says .... When STRAEM mode used the engine performs a few optimisations like: Thanks, Genene From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Demian Calcaprina Sent: Tuesday, August 27, 2013 1:17 PM To: Rules Users List Subject: Re: [rules-users] Problem with PKG from guvnor Thanks Genene. In fact I was able to get the cause of my issue. I created a ticket with the explanation and a pull request with a possible solution. https://issues.jboss.org/browse/DROOLS-243 Thanks, Demian On Tue, Aug 27, 2013 at 12:26 PM, Genene Geda <ggeda@ghx.com<mailto:ggeda@ghx.com>> wrote: Hi-, I think I had similar issue and resolved by looking at one of these: 1. How the changes set is loaded: Resource changeset = ResourceFactory.newFileResource(changeSetFilePath); //.newClassPathResource(changeSetPath); 2.If the package not yet built, In GUVNOR, I go to 'knowledgebase'/ click on you package/click on the 'edit' tab on the right/ click build package ( I also do create snapshot but may not be necessary ). See if it helps. G- -----Original Message----- From: rules-users-bounces@lists.jboss.org<mailto:rules-users-bounces@lists.jboss.org> [mailto:rules-users-bounces@lists.jboss.org<mailto:rules-users-bounces@lists.jboss.org>] On Behalf Of calcacuervo Sent: Monday, August 26, 2013 10:26 PM To: rules-users@lists.jboss.org<mailto:rules-users@lists.jboss.org> Subject: [rules-users] Problem with PKG from guvnor Hi Guys, I am having a problem using Drools 5.5. Basically, I have a ksession in stream mode. I have a rule with an event, like this when myfact: EventA( main > 21 ) over window:length (1) myfact2 : EventA( main <= 21 , this before myfact ) over window:length (2) I also use a KnowledgeAgent and apply a changeset. If I declare this rule directly from the changeset, as a Classpath resource, with resource type DRL, it seems to work fine (the kbase compiles!). But If I have the rule in a guvnor package, and I put the PKG link in my changeset, I am getting an error: Caused by: java.lang.NullPointerException at org.drools.base.evaluators.BeforeEvaluatorDefinition$BeforeEvaluator.getInterval(BeforeEvaluatorDefinition.java:268) [drools-core-5.5.0.Final.jar:5.5.0.Final] at org.drools.rule.constraint.EvaluatorConstraint.getInterval(EvaluatorConstraint.java:100) [drools-core-5.5.0.Final.jar:5.5.0.Final] at org.drools.reteoo.builder.BuildUtils.gatherTemporalRelationships(BuildUtils.java:326) [drools-core-5.5.0.Final.jar:5.5.0.Final] at org.drools.reteoo.builder.BuildUtils.calculateTemporalDistance(BuildUtils.java:292) [drools-core-5.5.0.Final.jar:5.5.0.Final] at org.drools.reteoo.builder.ReteooRuleBuilder.addRule(ReteooRuleBuilder.java:119) [drools-core-5.5.0.Final.jar:5.5.0.Final] at org.drools.reteoo.ReteooBuilder.addRule(ReteooBuilder.java:113) [drools-core-5.5.0.Final.jar:5.5.0.Final] at org.drools.reteoo.ReteooRuleBase.addRule(ReteooRuleBase.java:445) [drools-core-5.5.0.Final.jar:5.5.0.Final] It seems that that getOperator() is null in this evaluation: if ( this.getOperator().isNegated() ) { I debugged a bit, and it seems the evaluator comes in serialized from guvnor's package.But in case of getting directly the classpath resource, it compiles the package and it gets the real operator ok (Operator = 'before') Do you have any idea of why it could be happening? May I be doing something wrong? Is this a bug in guvnor? Thanks in advance! Demian -- View this message in context: http://drools.46999.n3.nabble.com/Problem-with-PKG-from-guvnor-tp4025687.... Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users@lists.jboss.org<mailto:rules-users@lists.jboss.org> https://lists.jboss.org/mailman/listinfo/rules-users _______________________________________________ rules-users mailing list rules-users@lists.jboss.org<mailto:rules-users@lists.jboss.org> https://lists.jboss.org/mailman/listinfo/rules-users