[jboss-jira] [JBoss JIRA] Commented: (JBRULES-1572) sometimes getting ClassFieldExtractor error
[ http://jira.jboss.com/jira/browse/JBRULES-1572?page=comments#action_12411686 ]
Ming Fang commented on JBRULES-1572:
------------------------------------
I got the error using your test case. i'm running on a duo core machine.
==>[ActivationCreated(2225): rule=Auto Retract; tuple=[fact fid:1112:1112:[Person
name='bobba fet']]
]
==>[ActivationCreated(2226): rule=Auto Retract; tuple=[fact fid:1113:1113:[Person
name='bobba fet']]
]
[BeforeActivationFired(2225): rule=Auto Retract; tuple=[fact fid:1112:1112:[Person
name='bobba fet']]
]
[AfterActivationFired(2225): rule=Auto Retract; tuple=[fact fid:-1:1112:null]
]
[BeforeActivationFired(2225): rule=Auto Retract; tuple=[fact fid:-1:1112: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:594)
at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:554)
at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:527)
at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:491)
at org.drools.test.Test2$1.run(Test2.java:44)
at java.lang.Thread.run(Thread.java:637)
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 org.drools.test.Rule_Auto_Retract_0.consequence(Rule_Auto_Retract_0.java:7)
at
org.drools.test.Rule_Auto_Retract_0ConsequenceInvoker.evaluate(Rule_Auto_Retract_0ConsequenceInvoker.java:23)
at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:590)
... 5 more
[BeforeActivationFired(2225): rule=Auto Retract; tuple=[fact fid:-1:1112: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:594)
at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:554)
at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:527)
at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:491)
at org.drools.test.Test2$1.run(Test2.java:44)
at java.lang.Thread.run(Thread.java:637)
Caused by: org.drools.FactException: Retract error: handle not found for object: null. Is
it in the working memory?
at org.drools.base.DefaultKnowledgeHelper.retract(DefaultKnowledgeHelper.java:144)
at org.drools.test.Rule_Auto_Retract_0.consequence(Rule_Auto_Retract_0.java:7)
at
org.drools.test.Rule_Auto_Retract_0ConsequenceInvoker.evaluate(Rule_Auto_Retract_0ConsequenceInvoker.java:23)
at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:590)
... 5 more
sometimes getting ClassFieldExtractor error
-------------------------------------------
Key: JBRULES-1572
URL: http://jira.jboss.com/jira/browse/JBRULES-1572
Project: JBoss Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Affects Versions: 5.0.0-M1, 4.0.4, 4.0.7
Reporter: Ming Fang
Assigned To: Mark Proctor
Fix For: 5.0.0-M1
Attachments: Foo.java, rule.drl, Test.java, Test.java
Caused by: java.lang.NullPointerException
at org.drools.base.com.ml.ax.ModelValue10285014$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.
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