[jboss-jira] [JBoss JIRA] Closed: (JBRULES-745) NullPointerException in modifyObject

NullPointerException in modifyObject ------------------------------------ Key: JBRULES-745 URL: http://jira.jboss.com/jira/browse/JBRULES-745 Project: JBoss Rules Issue Type: Bug Security Level: Public(Everyone can see) Affects Versions: 3.1-m2 Environment: Trunk (revision 10170) Reporter: Dirk Bergstrom Assigned To: Edson Tirelli Fix For: 3.1-m2 I'm getting an exception while asserting objects into the working memory. Depending on the timing, I get different stacktraces leading up the same exception on the same generated class. I have 15 rules and three types of objects in the working memory. 2500 User objects, 37 Milestone objects, and 2000 RLI objects. If I assert all the Users and Milestones first, I get the first exception below during assertion of the RLI objects, at the 257th object asserted. If I arrange to skip that particular record, I can assert a few more before another record trips the bug. If I put a try/catch block around the assertion and continue after hitting an exception, I can assert about 1600 of the records successfully, and the others reliably throw (ie. if I try to assert them later). If I assert RLIs first, I get the second stacktrace during assertion of Milestones. Looks like the problem happens during execution of one or more rules. I'll attach the RLI class, and its parent class (which is also the parent of the other two classes). Exception in thread "RLIs Processor" java.lang.IncompatibleClassChangeError at net.juniper.dash.data.RLIRecordShadowProxy.hashCode(Unknown Source) at java.util.HashMap.put(HashMap.java:418) at java.util.HashSet.add(HashSet.java:194) at org.drools.reteoo.CollectNode.assertTuple(CollectNode.java:135) at org.drools.reteoo.CollectNode.assertObject(CollectNode.java:212) at org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:20) at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:145) at org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:304) at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:176) at org.drools.reteoo.Rete.assertObject(Rete.java:121) at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:196) at org.drools.reteoo.ReteooWorkingMemory.doAssertObject(ReteooWorkingMemory.java:68) at org.drools.common.AbstractWorkingMemory.assertObject(AbstractWorkingMemory.java:729) at org.drools.common.AbstractWorkingMemory.assertObject(AbstractWorkingMemory.java:548) Exception in thread "Milestones and NPI Processor" java.lang.IncompatibleClassChangeError at net.juniper.dash.data.RLIRecordShadowProxy.hashCode(Unknown Source) at java.util.HashMap.put(HashMap.java:418) at java.util.HashSet.add(HashSet.java:194) at org.drools.reteoo.CollectNode.assertTuple(CollectNode.java:135) at org.drools.reteoo.CompositeTupleSinkAdapter.propagateAssertTuple(CompositeTupleSinkAdapter.java:30) at org.drools.reteoo.JoinNode.assertTuple(JoinNode.java:116) at org.drools.reteoo.SingleTupleSinkAdapter.createAndPropagateAssertTuple(SingleTupleSinkAdapter.java:55) at org.drools.reteoo.LeftInputAdapterNode.assertObject(LeftInputAdapterNode.java:147) at org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:20) at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:145) at org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:20) at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:176) at org.drools.reteoo.Rete.assertObject(Rete.java:121) at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:196) at org.drools.reteoo.ReteooWorkingMemory.doAssertObject(ReteooWorkingMemory.java:68) at org.drools.common.AbstractWorkingMemory.assertObject(AbstractWorkingMemory.java:729) at org.drools.common.AbstractWorkingMemory.assertObject(AbstractWorkingMemory.java:548) at net.juniper.dash.data.DataSource.reconcileAssertedRecords(DataSource.java:190) at net.juniper.dash.data.DataSource.populateRecords(DataSource.java:150) at net.juniper.dash.Updater$DataSourceProcessor.work(Updater.java:181) at net.juniper.dash.Refresher.run(Refresher.java:70)