[jboss-jira] [JBoss JIRA] Resolved: (JBRULES-2762) ArrayIndexOutOfBoundsException in org.drools.core.util.AbstractHashTable

[Mark Proctor (JIRA)]

     [ https://issues.jboss.org/browse/JBRULES-2762?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mark Proctor resolved JBRULES-2762.
-----------------------------------

    Fix Version/s: 5.2.0.M2
       Resolution: Done


> ArrayIndexOutOfBoundsException in org.drools.core.util.AbstractHashTable
> ------------------------------------------------------------------------
>
>                 Key: JBRULES-2762
>                 URL: https://issues.jboss.org/browse/JBRULES-2762
>             Project: Drools
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: drools-core  (expert)
>    Affects Versions: 5.1.1.FINAL
>         Environment: JBoss 5.1 on JDK6, 64bit Windows Server
>            Reporter: Lubos Pechac
>            Assignee: Mark Proctor
>             Fix For: 5.2.0.M2
>
>
> Exception occures at: 
> org.drools.core.util.AbstractHashTable$HashTableIterator.next(AbstractHashTable.java:317) 
> in Drools 5.1.1 when calling insert() on just created StatefulKnowledgeSession. 
> I found similar issues reported for LeftTupleIndexHashTable, it had to do with initializing row to -1 instead of 0 or something similar. I see that fixed in Left/RightTupleIndexHashTable but it seems to me like it is still present in AbstractHashTable. 
> The bug occures randomly (inserting the same data), usualy under load. The index is either -1 or too high. I create multiple sessions in threads from one KnowledgeBase, sessions are not shared. The sessions are relatively short living, about 100ms max.
> Stack trace I got is: 
> java.lang.ArrayIndexOutOfBoundsException: 16 
>                 at org.drools.core.util.AbstractHashTable$HashTableIterator.next(AbstractHashTable.java:317) 
>                 at org.drools.reteoo.EntryPointNode.updateSink(EntryPointNode.java:323) 
>                 at org.drools.reteoo.ObjectTypeNode.attach(ObjectTypeNode.java:303) 
>                 at org.drools.reteoo.builder.PatternBuilder.attachObjectTypeNode(PatternBuilder.java:257) 
>                 at org.drools.reteoo.ClassObjectTypeConf.<init>(ClassObjectTypeConf.java:92) 
>                 at org.drools.common.ObjectTypeConfigurationRegistry.getObjectTypeConf(ObjectTypeConfigurationRegistry.java:68) 
>                 at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:981) 
>                 at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:917) 
>                 at org.drools.impl.StatefulKnowledgeSessionImpl.insert(StatefulKnowledgeSessionImpl.java:251) 

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