Re: [rules-users] Still getting an EvalConditionNode ClassCastException

Tuesday, 20 July 2010

    Paul,

    Did you tried trunk?

    The source of this problem was not in the EvalNode class itself (that is
why you mention the code is still there), but on the re-use of node ids,
that determine the position of the node memory in the memory array. I fixed
this in trunk a few weeks ago. Give it a try and let me know if you still
see any problem, but I think it is everything fine now.

https://jira.jboss.org/browse/JBRULES-2312

    Thanks,
         Edson

2010/7/20 Paul Ryan <pryan(a)infotrustgroup.com&gt;

...
 We're still getting a class cast exception for beta and eval
memory
 (exception below). It is a different location and the opposite direction of
 the exception cast from JBRULES-1719.

 The rule we ran was:

 /**
 * Load the smgl transform
 */
 rule "Load Transform"
 when
   $fact : ParametersFact(
            doc != "dmodule",
            $xml : xml != null,
            noopResponse == true,

eval(XPathUtil.selectElement($xml,"/*/transformLog//transform[name='s1000dv3']")==null),
     flags['loadedS1000Dv3']!=true,

eval(XPathUtil.selectElement($xml,"/*/transformLog//transform[name='detect']/results[result='text/xml']")!=null)
    )
    $importUtil : RuleImportUtil()
    $model : EditionsRulesJobRunner(stop==false,interrupt==false)
 then

    Vector<String> libraries = new Vector<String>();
    libraries.add("lib");
    String documentType = "dmodule";
    String fragmentType = "dmodule";

$importUtil.importRules(kcontext,"transformCmd",documentType,fragmentType,libraries);
    $fact.getFlags().put("loadedS1000Dv3",true);
 end

 The thing of consequence here is the importRules call which modifies the
 kcontext and acts as a dynamic include (e.g. it imports new rules).

 The exception received is:

 INFO   | 2010/07/19 17:07:29 | jvm 1    | 2010-07-19 17:07:29,743  INFO
 com.infotrustgroup.restless.server.ThreadedService:An exception was trapped
 in com.infotrustgroup.jobs.services.auth.EditionsRulesJobRunner
 INFO   | 2010/07/19 17:07:29 | jvm 1    |
 org.drools.runtime.rule.ConsequenceException: java.lang.ClassCastException:
 org.drools.reteoo.BetaMemory cannot be cast to
 org.drools.reteoo.EvalConditionNode$EvalMemory
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at

org.drools.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:23)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:943)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:885)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1086)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:660)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:627)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at

org.drools.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:183)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 com.infotrustgroup.rules.engine.RulesManager.runRules(RulesManager.java:363)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 com.infotrustgroup.util.rules.RuleFileUtil.runRules(RuleFileUtil.java:385)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 com.infotrustgroup.util.rules.RuleFileUtil.runRules(RuleFileUtil.java:349)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 com.infotrustgroup.util.rules.RuleRunner.run(RuleRunner.java:395)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 com.infotrustgroup.util.rules.RuleRunner.call(RuleRunner.java:193)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at

com.infotrustgroup.jobs.services.auth.EditionsRulesJobRunner.runRules(EditionsRulesJobRunner.java:87)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 java.lang.reflect.Method.invoke(Method.java:597)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at

com.infotrustgroup.restless.server.ThreadedService.runServiceMethod(ThreadedService.java:845)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | Caused by:
 java.lang.ClassCastException: org.drools.reteoo.BetaMemory cannot be cast to
 org.drools.reteoo.EvalConditionNode$EvalMemory
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 org.drools.reteoo.EvalConditionNode.retractLeftTuple(EvalConditionNode.java:199)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 org.drools.reteoo.ObjectTypeNode.retractObject(ObjectTypeNode.java:239)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 org.drools.reteoo.EntryPointNode.retractObject(EntryPointNode.java:195)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 org.drools.common.AbstractWorkingMemory.update(AbstractWorkingMemory.java:1416)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 org.drools.common.AbstractWorkingMemory.update(AbstractWorkingMemory.java:1350)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at

org.drools.impl.StatefulKnowledgeSessionImpl.update(StatefulKnowledgeSessionImpl.java:231)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at

com.infotrustgroup.rules.engine.RulesManager$InnerPropertyChangeListener.propertyChange(RulesManager.java:467)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:339)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 com.infotrustgroup.util.collections.BoundMap.put(BoundMap.java:67)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at

com.infotrustgroup.what.Rule_Load_ATAXML_Transform_0.consequence(Rule_Load_ATAXML_Transform_0.java:28)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at

com.infotrustgroup.what.Rule_Load_ATAXML_Transform_0ConsequenceInvoker.evaluate(Rule_Load_ATAXML_Transform_0ConsequenceInvoker.java:28)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:934)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | ... 16 more
 INFO   | 2010/07/19 17:07:29 | jvm 1    |
 org.drools.runtime.rule.ConsequenceException: java.lang.ClassCastException:
 org.drools.reteoo.BetaMemory cannot be cast to
 org.drools.reteoo.EvalConditionNode$EvalMemory
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at

org.drools.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:23)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:943)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:885)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1086)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:660)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:627)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at

org.drools.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:183)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 com.infotrustgroup.rules.engine.RulesManager.runRules(RulesManager.java:363)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 com.infotrustgroup.util.rules.RuleFileUtil.runRules(RuleFileUtil.java:385)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 com.infotrustgroup.util.rules.RuleFileUtil.runRules(RuleFileUtil.java:349)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 com.infotrustgroup.util.rules.RuleRunner.run(RuleRunner.java:395)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 com.infotrustgroup.util.rules.RuleRunner.call(RuleRunner.java:193)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at

com.infotrustgroup.jobs.services.auth.EditionsRulesJobRunner.runRules(EditionsRulesJobRunner.java:87)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 java.lang.reflect.Method.invoke(Method.java:597)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at

com.infotrustgroup.restless.server.ThreadedService.runServiceMethod(ThreadedService.java:845)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | Caused by:
 java.lang.ClassCastException: org.drools.reteoo.BetaMemory cannot be cast to
 org.drools.reteoo.EvalConditionNode$EvalMemory
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 org.drools.reteoo.EvalConditionNode.retractLeftTuple(EvalConditionNode.java:199)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 org.drools.reteoo.ObjectTypeNode.retractObject(ObjectTypeNode.java:239)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 org.drools.reteoo.EntryPointNode.retractObject(EntryPointNode.java:195)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 org.drools.common.AbstractWorkingMemory.update(AbstractWorkingMemory.java:1416)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 org.drools.common.AbstractWorkingMemory.update(AbstractWorkingMemory.java:1350)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at

org.drools.impl.StatefulKnowledgeSessionImpl.update(StatefulKnowledgeSessionImpl.java:231)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at

com.infotrustgroup.rules.engine.RulesManager$InnerPropertyChangeListener.propertyChange(RulesManager.java:467)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:339)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 com.infotrustgroup.util.collections.BoundMap.put(BoundMap.java:67)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at

com.infotrustgroup.what.Rule_Load_ATAXML_Transform_0.consequence(Rule_Load_ATAXML_Transform_0.java:28)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at

com.infotrustgroup.what.Rule_Load_ATAXML_Transform_0ConsequenceInvoker.evaluate(Rule_Load_ATAXML_Transform_0ConsequenceInvoker.java:28)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:934)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | ... 16 more
 INFO   | 2010/07/19 17:07:29 | jvm 1    | 2010-07-19 17:07:29,759 FATAL
 com.infotrustgroup.jobs.services.auth.EditionsRulesJobRunner:Worker service
 threw an unexpected exception.
 INFO   | 2010/07/19 17:07:29 | jvm 1    |
 org.drools.runtime.rule.ConsequenceException: java.lang.ClassCastException:
 org.drools.reteoo.BetaMemory cannot be cast to
 org.drools.reteoo.EvalConditionNode$EvalMemory
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at

org.drools.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:23)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:943)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:885)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1086)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:660)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:627)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at

org.drools.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:183)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 com.infotrustgroup.rules.engine.RulesManager.runRules(RulesManager.java:363)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 com.infotrustgroup.util.rules.RuleFileUtil.runRules(RuleFileUtil.java:385)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 com.infotrustgroup.util.rules.RuleFileUtil.runRules(RuleFileUtil.java:349)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 com.infotrustgroup.util.rules.RuleRunner.run(RuleRunner.java:395)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 com.infotrustgroup.util.rules.RuleRunner.call(RuleRunner.java:193)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at

com.infotrustgroup.jobs.services.auth.EditionsRulesJobRunner.runRules(EditionsRulesJobRunner.java:87)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | Caused by:
 java.lang.ClassCastException: org.drools.reteoo.BetaMemory cannot be cast to
 org.drools.reteoo.EvalConditionNode$EvalMemory
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 org.drools.reteoo.EvalConditionNode.retractLeftTuple(EvalConditionNode.java:199)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 org.drools.reteoo.ObjectTypeNode.retractObject(ObjectTypeNode.java:239)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 org.drools.reteoo.EntryPointNode.retractObject(EntryPointNode.java:195)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 org.drools.common.AbstractWorkingMemory.update(AbstractWorkingMemory.java:1416)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 org.drools.common.AbstractWorkingMemory.update(AbstractWorkingMemory.java:1350)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at

org.drools.impl.StatefulKnowledgeSessionImpl.update(StatefulKnowledgeSessionImpl.java:231)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at

com.infotrustgroup.rules.engine.RulesManager$InnerPropertyChangeListener.propertyChange(RulesManager.java:467)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:339)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 com.infotrustgroup.util.collections.BoundMap.put(BoundMap.java:67)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at

com.infotrustgroup.what.Rule_Load_ATAXML_Transform_0.consequence(Rule_Load_ATAXML_Transform_0.java:28)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at

com.infotrustgroup.what.Rule_Load_ATAXML_Transform_0ConsequenceInvoker.evaluate(Rule_Load_ATAXML_Transform_0ConsequenceInvoker.java:28)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | at
 org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:934)
 INFO   | 2010/07/19 17:07:29 | jvm 1    | ... 11 more

 Point of speculation:

 When looking at the latest code on trunk I would believe this is not fixed
 as the line pointed to here has not changed (the place where this line
 exists has changed but not the code see fisheye at

http://fisheye.jboss.org/browse/JBossRules/trunk/drools-core/src/main/jav...
and
 where the lefthand side was 199 for 5.0.1 it is still the same code in the
 latest svn revision (now line 229).
 -- Paul Ryan

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-- 
  Edson Tirelli
  JBoss Drools Core Development
  JBoss by Red Hat @ www.jboss.com

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Re: [rules-users] Still getting an EvalConditionNode ClassCastException