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http://jira.jboss.com/jira/browse/JBRULES-904?page=comments#action_12366940 ]
Brian Stiles commented on JBRULES-904:
--------------------------------------
Well, I can't confirm that the toArray problem is fixed because after backing out my
changes and applying yours, I'm back to the problem that originally led me here. I
think I may have run into the ArrayIndexOutOfBoundsException when I was investigating this
problem (having made some experimental changes). It may be that I'm confusing two
different problems, but I suspect they're related.
After applying your changes, I now get the following exception (which I was getting
originally):
Exception in thread "main" java.lang.NullPointerException
at org.drools.rule.VariableRestriction.isAllowedCachedRight(VariableRestriction.java:79)
at org.drools.rule.VariableConstraint.isAllowedCachedRight(VariableConstraint.java:78)
at
org.drools.common.DoubleBetaConstraints.isAllowedCachedRight(DoubleBetaConstraints.java:149)
at org.drools.reteoo.CollectNode.assertObject(CollectNode.java:220)
at
org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:317)
at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:159)
at org.drools.reteoo.Rete.assertObject(Rete.java:175)
at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:190)
at org.drools.reteoo.ReteooWorkingMemory.doInsert(ReteooWorkingMemory.java:70)
at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:772)
The cause of the above exception is the fact that
org.drools.util.TupleIndexHashTable.toArray produces an array with nulls in it. I assumed
that this was probably related to the ArrayIndexOutOfBoundException, but it may be a
separate problem. I'd be happy to open a new bug if appropriate.
The nulls in the array, I believe, come from the first/next mismatch described above. Are
the assumptions in my prior post valid?
What other information can I give you?
ArrayIndexOutOfBoundsException in
org.drools.util.TupleIndexHashTable.toArray
-----------------------------------------------------------------------------
Key: JBRULES-904
URL:
http://jira.jboss.com/jira/browse/JBRULES-904
Project: JBoss Rules
Issue Type: Bug
Security Level: Public(Everyone can see)
Affects Versions: 4.0.0.MR3
Environment: Java 1.5
Reporter: Dirk Bergstrom
Assigned To: Edson Tirelli
Attachments: real-testcase.tgz, testcase.tar.gz
When asserting a particular object type, I get the following stacktrace:
java.lang.ArrayIndexOutOfBoundsException: 26
at org.drools.util.TupleIndexHashTable.toArray(TupleIndexHashTable.java:178)
at org.drools.reteoo.CollectNode.assertObject(CollectNode.java:212)
at
org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:317)
at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:183)
at org.drools.reteoo.Rete.assertObject(Rete.java:121)
at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:201)
at
org.drools.reteoo.ReteooWorkingMemory.doAssertObject(ReteooWorkingMemory.java:70)
at
org.drools.common.AbstractWorkingMemory.assertObject(AbstractWorkingMemory.java:766)
at
org.drools.common.AbstractWorkingMemory.assertObject(AbstractWorkingMemory.java:578)
at
net.juniper.dash.data.DataSource.reconcileAssertedRecords(DataSource.java:250)
at net.juniper.dash.data.DataSource.populateRecords(DataSource.java:193)
at net.juniper.dash.Updater$DataSourceProcessor.work(Updater.java:177)
at net.juniper.dash.Refresher.run(Refresher.java:69)
I added some println() statements, and it's not an off-by-one error, it's
something more serious. I changed the allocated size of the array to (this.size * 10),
and it *still* tried to overfill the array. The hashtable had 26 entries, but it tried to
add 261, and counting.
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