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https://issues.jboss.org/browse/DROOLS-215?page=com.atlassian.jira.plugin...
]
Davide Sottara commented on DROOLS-215:
---------------------------------------
Unfortunately this is a blocker issue, not just a major one. I'd really like to see it
fixed in 5.6
It would be great if someone experiencing this problem could run the debug code attached.
It adds debug printouts to the ConcurrentNodeMemories class.
A version using a logger would be equivalent: the goal would be to extract a trace history
of the memory cache actions.
Thanks!
Corrupted Working/Production memory
-----------------------------------
Key: DROOLS-215
URL:
https://issues.jboss.org/browse/DROOLS-215
Project: Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Affects Versions: 5.5.0.Final
Reporter: Ales Dolecek
Assignee: Mark Proctor
Attachments: ConcurrentNodeMemories.java
Experienced ClassCastException mixing BetaMemory and AlphaMemory. There is debate in the
mailing list/forum. The problem seems to be related to dymanic updates of knowledgebase.
Saddly there is no deterministic way how to reproduce the issue, but that should not
prevent tracking it here.
Stack trace from my project:
java.lang.ClassCastException: org.drools.reteoo.BetaMemory cannot be cast to
org.drools.reteoo.AlphaNode$AlphaMemory
at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:136)
~[drools-core-5.5.0.Final.jar:5.5.0.Final]
at
org.drools.reteoo.CompositeObjectSinkAdapter.doPropagateAssertObject(CompositeObjectSinkAdapter.java:497)
~[drools-core-5.5.0.Final.jar:5.5.0.Final]
at
org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:382)
~[drools-core-5.5.0.Final.jar:5.5.0.Final]
at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:235)
~[drools-core-5.5.0.Final.jar:5.5.0.Final]
at org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:240)
~[drools-core-5.5.0.Final.jar:5.5.0.Final]
at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:350)
~[drools-core-5.5.0.Final.jar:5.5.0.Final]
at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:311)
~[drools-core-5.5.0.Final.jar:5.5.0.Final]
at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:903)
~[drools-core-5.5.0.Final.jar:5.5.0.Final]
at org.drools.base.DefaultKnowledgeHelper.insert(DefaultKnowledgeHelper.java:192)
~[drools-core-5.5.0.Final.jar:5.5.0.Final]
at org.drools.base.DefaultKnowledgeHelper.insert(DefaultKnowledgeHelper.java:186)
~[drools-core-5.5.0.Final.jar:5.5.0.Final]
at
cz.nextiraone.screening.rules.screening.Rule_Telefonni_cislo_z_textu__jen_cifry__225b11d6cd07418aac8c06cf5c86b4b1.defaultConsequence(Rule_Telefonni_cislo_z_textu__jen_cifry__225b11d6cd07418aac8c06cf5c86b4b1.java:7)
~[na
:na]
at
cz.nextiraone.screening.rules.screening.Rule_Telefonni_cislo_z_textu__jen_cifry__225b11d6cd07418aac8c06cf5c86b4b1DefaultConsequenceInvokerGenerated.evaluate(Unknown
Source) ~[na:na]
at
cz.nextiraone.screening.rules.screening.Rule_Telefonni_cislo_z_textu__jen_cifry__225b11d6cd07418aac8c06cf5c86b4b1DefaultConsequenceInvoker.evaluate(Unknown
Source) ~[na:na]
at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1287)
~[drools-core-5.5.0.Final.jar:5.5.0.Final]
at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:1221)
~[drools-core-5.5.0.Final.jar:5.5.0.Final]
at org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1456)
~[drools-core-5.5.0.Final.jar:5.5.0.Final]
at
org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:710)
~[drools-core-5.5.0.Final.jar:5.5.0.Final]
at
org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:674)
~[drools-core-5.5.0.Final.jar:5.5.0.Final]
at
org.drools.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:230)
~[drools-core-5.5.0.Final.jar:5.5.0.Final]
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