[jboss-jira] [JBoss JIRA] (JBRULES-3660) NullPointerException at org.drools.base.evaluators.AfterEvaluatorDefinition$AfterEvaluator.getInterval(AfterEvaluatorDefinition.java:272)
Kiran Kumar A (JIRA)
jira-events at lists.jboss.org
Thu Oct 18 08:32:02 EDT 2012
[ https://issues.jboss.org/browse/JBRULES-3660?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Kiran Kumar A updated JBRULES-3660:
-----------------------------------
Description:
I am getting the below exception when creating knowledge base using knowledge agent.
The things I have done :
I have created a package in Guvnor
And uploaded a jar using 'New POJO Model Jar'
And declared some of the POJOs as events using 'New declarative MOdel'
I added role and timestamp annotations to declare them as events.
I wrote CEP rules. The below is the one of the rule.
rule 'Rule 1'
when
$eventA: EventA($eventId:eventId) from enrtry-point "STREAM1"
not EventB($eventId == eventId, this after[0s,3m] $eventA) from enrtry-point "STREAM1"
then
helper.doAction1($eventA);
I built package. And downloaded changeset.xml.
Copied the changeset to project classpath.
I created web application having rule engine as a component.
I tried creating knowledge base using knowledge agent.
ava.lang.NullPointerException
at org.drools.base.evaluators.AfterEvaluatorDefinition$AfterEvaluator.getInterval(AfterEvaluatorDefinition.java:272)
at org.drools.rule.constraint.EvaluatorConstraint.getInterval(EvaluatorConstraint.java:100)
at org.drools.reteoo.builder.BuildUtils.gatherTemporalRelationships(BuildUtils.java:326)
at org.drools.reteoo.builder.BuildUtils.calculateTemporalDistance(BuildUtils.java:292)
at org.drools.reteoo.builder.ReteooRuleBuilder.addRule(ReteooRuleBuilder.java:113)
at org.drools.reteoo.ReteooBuilder.addRule(ReteooBuilder.java:116)
at org.drools.reteoo.ReteooRuleBase.addRule(ReteooRuleBase.java:445)
at org.drools.common.AbstractRuleBase.addRule(AbstractRuleBase.java:956)
at org.drools.common.AbstractRuleBase.addPackages(AbstractRuleBase.java:627)
at org.drools.reteoo.ReteooRuleBase.addPackages(ReteooRuleBase.java:472)
at org.drools.impl.KnowledgeBaseImpl.addKnowledgePackages(KnowledgeBaseImpl.java:150)
at org.drools.agent.impl.KnowledgeAgentImpl.addResourcesToKnowledgeBase(KnowledgeAgentImpl.java:1085)
at org.drools.agent.impl.KnowledgeAgentImpl.incrementalBuildResources(KnowledgeAgentImpl.java:971)
at org.drools.agent.impl.KnowledgeAgentImpl.buildKnowledgeBase(KnowledgeAgentImpl.java:675)
at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:203)
at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:182)
at com.abccomp.rules.engine.impl.GuvnorKnowledgeBaseProvider.createKnowledgeBase(GuvnorKnowledgeBaseProvider.java:126)
at com.abccomp.rules.engine.impl.RuleEngineImpl.start(RuleEngineImpl.java:203)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1414)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1375)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1335)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:473)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
at java.security.AccessController.doPrivileged(Native Method)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380)
at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4206)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4705)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:601)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:943)
at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:778)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:504)
at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1385)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:306)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)
at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1389)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1653)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1662)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1642)
at java.lang.Thread.run(Thread.java:680)
2012-10-17 19:07:59,761 [ContainerBackgroundProcessor[StandardEngine[Catalina]]] ERROR com.abccomp.rules.engine.impl.RuleEngineImpl - Error while starting knolwdge base
java.lang.Exception: Error while creating knowledge base
at com.abccomp.rules.engine.impl.GuvnorKnowledgeBaseProvider.createKnowledgeBase(GuvnorKnowledgeBaseProvider.java:136)
at com.abccomp.rules.engine.impl.RuleEngineImpl.start(RuleEngineImpl.java:203)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1414)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1375)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1335)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:473)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
at java.security.AccessController.doPrivileged(Native Method)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380)
at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4206)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4705)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:601)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:943)
at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:778)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:504)
at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1385)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:306)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)
at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1389)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1653)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1662)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1642)
at java.lang.Thread.run(Thread.java:680)
was:
I am getting the below exception when creating knowledge base using knowledge agent.
The things I have done :
I have created a package in Guvnor
And uploaded a jar using 'New POJO Model Jar'
And declared some of the POJOs as events using 'New declarative MOdel'
I added role and timestamp annotations to declare them as events.
I wrote CEP rules. The below is the one of the rule.
rule 'Rule 1'
when
$eventA: EventA($eventId:eventId) from enrtry-point "STREAM1"
not EventB($eventId == eventId, this after[0s,3m] $eventA) from enrtry-point "STREAM1"
then
helper.doAction1($eventA);
I built package. And downloaded changeset.xml.
Copied the changeset to project classpath.
I created web application having rule engine as a component.
I tried creating knowledge base using knowledge agent.
ava.lang.NullPointerException
at org.drools.base.evaluators.AfterEvaluatorDefinition$AfterEvaluator.getInterval(AfterEvaluatorDefinition.java:272)
at org.drools.rule.constraint.EvaluatorConstraint.getInterval(EvaluatorConstraint.java:100)
at org.drools.reteoo.builder.BuildUtils.gatherTemporalRelationships(BuildUtils.java:326)
at org.drools.reteoo.builder.BuildUtils.calculateTemporalDistance(BuildUtils.java:292)
at org.drools.reteoo.builder.ReteooRuleBuilder.addRule(ReteooRuleBuilder.java:113)
at org.drools.reteoo.ReteooBuilder.addRule(ReteooBuilder.java:116)
at org.drools.reteoo.ReteooRuleBase.addRule(ReteooRuleBase.java:445)
at org.drools.common.AbstractRuleBase.addRule(AbstractRuleBase.java:956)
at org.drools.common.AbstractRuleBase.addPackages(AbstractRuleBase.java:627)
at org.drools.reteoo.ReteooRuleBase.addPackages(ReteooRuleBase.java:472)
at org.drools.impl.KnowledgeBaseImpl.addKnowledgePackages(KnowledgeBaseImpl.java:150)
at org.drools.agent.impl.KnowledgeAgentImpl.addResourcesToKnowledgeBase(KnowledgeAgentImpl.java:1085)
at org.drools.agent.impl.KnowledgeAgentImpl.incrementalBuildResources(KnowledgeAgentImpl.java:971)
at org.drools.agent.impl.KnowledgeAgentImpl.buildKnowledgeBase(KnowledgeAgentImpl.java:675)
at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:203)
at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:182)
at com.patronpath.rules.engine.impl.GuvnorKnowledgeBaseProvider.createKnowledgeBase(GuvnorKnowledgeBaseProvider.java:126)
at com.patronpath.rules.engine.impl.RuleEngineImpl.start(RuleEngineImpl.java:203)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1414)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1375)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1335)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:473)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
at java.security.AccessController.doPrivileged(Native Method)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380)
at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4206)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4705)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:601)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:943)
at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:778)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:504)
at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1385)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:306)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)
at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1389)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1653)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1662)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1642)
at java.lang.Thread.run(Thread.java:680)
2012-10-17 19:07:59,761 [ContainerBackgroundProcessor[StandardEngine[Catalina]]] ERROR com.patronpath.rules.engine.impl.RuleEngineImpl - Error while starting knolwdge base
java.lang.Exception: Error while creating knowledge base
at com.patronpath.rules.engine.impl.GuvnorKnowledgeBaseProvider.createKnowledgeBase(GuvnorKnowledgeBaseProvider.java:136)
at com.patronpath.rules.engine.impl.RuleEngineImpl.start(RuleEngineImpl.java:203)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1414)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1375)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1335)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:473)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
at java.security.AccessController.doPrivileged(Native Method)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380)
at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4206)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4705)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:601)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:943)
at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:778)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:504)
at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1385)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:306)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)
at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1389)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1653)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1662)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1642)
at java.lang.Thread.run(Thread.java:680)
> NullPointerException at org.drools.base.evaluators.AfterEvaluatorDefinition$AfterEvaluator.getInterval(AfterEvaluatorDefinition.java:272)
> ------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: JBRULES-3660
> URL: https://issues.jboss.org/browse/JBRULES-3660
> Project: Drools
> Issue Type: Bug
> Security Level: Public(Everyone can see)
> Affects Versions: 5.4.0.Final
> Reporter: Kiran Kumar A
> Assignee: Mark Proctor
> Original Estimate: 1 day
> Remaining Estimate: 1 day
>
> I am getting the below exception when creating knowledge base using knowledge agent.
> The things I have done :
> I have created a package in Guvnor
> And uploaded a jar using 'New POJO Model Jar'
> And declared some of the POJOs as events using 'New declarative MOdel'
> I added role and timestamp annotations to declare them as events.
> I wrote CEP rules. The below is the one of the rule.
> rule 'Rule 1'
> when
> $eventA: EventA($eventId:eventId) from enrtry-point "STREAM1"
> not EventB($eventId == eventId, this after[0s,3m] $eventA) from enrtry-point "STREAM1"
> then
> helper.doAction1($eventA);
> I built package. And downloaded changeset.xml.
> Copied the changeset to project classpath.
> I created web application having rule engine as a component.
> I tried creating knowledge base using knowledge agent.
> ava.lang.NullPointerException
> at org.drools.base.evaluators.AfterEvaluatorDefinition$AfterEvaluator.getInterval(AfterEvaluatorDefinition.java:272)
> at org.drools.rule.constraint.EvaluatorConstraint.getInterval(EvaluatorConstraint.java:100)
> at org.drools.reteoo.builder.BuildUtils.gatherTemporalRelationships(BuildUtils.java:326)
> at org.drools.reteoo.builder.BuildUtils.calculateTemporalDistance(BuildUtils.java:292)
> at org.drools.reteoo.builder.ReteooRuleBuilder.addRule(ReteooRuleBuilder.java:113)
> at org.drools.reteoo.ReteooBuilder.addRule(ReteooBuilder.java:116)
> at org.drools.reteoo.ReteooRuleBase.addRule(ReteooRuleBase.java:445)
> at org.drools.common.AbstractRuleBase.addRule(AbstractRuleBase.java:956)
> at org.drools.common.AbstractRuleBase.addPackages(AbstractRuleBase.java:627)
> at org.drools.reteoo.ReteooRuleBase.addPackages(ReteooRuleBase.java:472)
> at org.drools.impl.KnowledgeBaseImpl.addKnowledgePackages(KnowledgeBaseImpl.java:150)
> at org.drools.agent.impl.KnowledgeAgentImpl.addResourcesToKnowledgeBase(KnowledgeAgentImpl.java:1085)
> at org.drools.agent.impl.KnowledgeAgentImpl.incrementalBuildResources(KnowledgeAgentImpl.java:971)
> at org.drools.agent.impl.KnowledgeAgentImpl.buildKnowledgeBase(KnowledgeAgentImpl.java:675)
> at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:203)
> at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:182)
> at com.abccomp.rules.engine.impl.GuvnorKnowledgeBaseProvider.createKnowledgeBase(GuvnorKnowledgeBaseProvider.java:126)
> at com.abccomp.rules.engine.impl.RuleEngineImpl.start(RuleEngineImpl.java:203)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1414)
> at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1375)
> at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1335)
> at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:473)
> at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
> at java.security.AccessController.doPrivileged(Native Method)
> at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
> at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
> at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
> at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
> at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
> at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
> at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429)
> at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728)
> at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380)
> at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255)
> at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199)
> at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45)
> at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4206)
> at org.apache.catalina.core.StandardContext.start(StandardContext.java:4705)
> at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799)
> at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779)
> at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:601)
> at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:943)
> at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:778)
> at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:504)
> at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1385)
> at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:306)
> at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)
> at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1389)
> at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1653)
> at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1662)
> at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1642)
> at java.lang.Thread.run(Thread.java:680)
> 2012-10-17 19:07:59,761 [ContainerBackgroundProcessor[StandardEngine[Catalina]]] ERROR com.abccomp.rules.engine.impl.RuleEngineImpl - Error while starting knolwdge base
> java.lang.Exception: Error while creating knowledge base
> at com.abccomp.rules.engine.impl.GuvnorKnowledgeBaseProvider.createKnowledgeBase(GuvnorKnowledgeBaseProvider.java:136)
> at com.abccomp.rules.engine.impl.RuleEngineImpl.start(RuleEngineImpl.java:203)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1414)
> at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1375)
> at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1335)
> at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:473)
> at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
> at java.security.AccessController.doPrivileged(Native Method)
> at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
> at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
> at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
> at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
> at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
> at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
> at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429)
> at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728)
> at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380)
> at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255)
> at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199)
> at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45)
> at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4206)
> at org.apache.catalina.core.StandardContext.start(StandardContext.java:4705)
> at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799)
> at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779)
> at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:601)
> at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:943)
> at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:778)
> at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:504)
> at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1385)
> at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:306)
> at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)
> at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1389)
> at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1653)
> at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1662)
> at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1642)
> at java.lang.Thread.run(Thread.java:680)
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