[jboss-jira] [JBoss JIRA] Updated: (JBRULES-1572) sometimes getting ClassFieldExtractor error

[Ming Fang (JIRA)]

     [ http://jira.jboss.com/jira/browse/JBRULES-1572?page=all ]

Ming Fang updated JBRULES-1572:
-------------------------------

    Attachment: Test.java
                rule.drl
                Foo.java

Here is an example of the error when running the standalone Test...

[BeforeActivationFired: rule=Auto Retract; tuple=[fact fid:204:204:test.Foo at 814dd0]
]
[AfterActivationFired(409): rule=Auto Retract]
[BeforeActivationFired: rule=Auto Retract; tuple=[fact fid:-1:204:null]
]
Exception in thread "thread2" org.drools.spi.ConsequenceException: org.drools.FactException: Retract error: handle not found for object: null. Is it in the working memory?
	at org.drools.base.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:24)
	at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:590)
	at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:550)
	at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:527)
	at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:491)
	at test.Test$1.run(Test.java:32)
	at java.lang.Thread.run(Thread.java:613)
Caused by: org.drools.FactException: Retract error: handle not found for object: null. Is it in the working memory?
	at org.drools.base.DefaultKnowledgeHelper.retract(DefaultKnowledgeHelper.java:144)
	at test.Rule_Auto_Retract_0.consequence(Rule_Auto_Retract_0.java:7)
	at test.Rule_Auto_Retract_0ConsequenceInvoker.evaluate(Rule_Auto_Retract_0ConsequenceInvoker.java:23)
	at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:586)
	... 5 more
[BeforeActivationFired: rule=Auto Retract; tuple=[fact fid:-1:204:null]
]
Exception in thread "thread1" org.drools.spi.ConsequenceException: org.drools.FactException: Retract error: handle not found for object: null. Is it in the working memory?
	at org.drools.base.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:24)
	at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:590)
	at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:550)
	at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:527)
	at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:491)
	at test.Test$1.run(Test.java:32)
	at java.lang.Thread.run(Thread.java:613)
Caused by: org.drools.FactException: Retract error: handle not found for object: null. Is it in the working memory?
	at org.drools.base.DefaultKnowledgeHelper.retract(DefaultKnowledgeHelper.java:144)
	at test.Rule_Auto_Retract_0.consequence(Rule_Auto_Retract_0.java:7)
	at test.Rule_Auto_Retract_0ConsequenceInvoker.evaluate(Rule_Auto_Retract_0ConsequenceInvoker.java:23)
	at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:586)
	... 5 more



> sometimes getting ClassFieldExtractor error
> -------------------------------------------
>
>                 Key: JBRULES-1572
>                 URL: http://jira.jboss.com/jira/browse/JBRULES-1572
>             Project: JBoss Drools
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>    Affects Versions: 5.0.0-M1, 4.0.4, 4.0.7
>            Reporter: Ming Fang
>         Assigned To: Mark Proctor
>         Attachments: Foo.java, rule.drl, Test.java
>
>
> Caused by: java.lang.NullPointerException
> 	at org.drools.base.com.ml.ax.ModelValue10285014$getModelValue.getDoubleValue(Unknown Source)
> 	at org.drools.base.ClassFieldExtractor.getDoubleValue(ClassFieldExtractor.java:191)
> 	at org.drools.rule.Declaration.getDoubleValue(Declaration.java:281)
> 	at com.ml.ax.drools.Rule_Quote_0ConsequenceInvoker.evaluate(Rule_Quote_0ConsequenceInvoker.java:17)
> 	at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:586)
> This only happens sometimes but it completely breaks my program.

-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: http://jira.jboss.com/jira/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira