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