Re: [rules-users] RightTupleIndexHashTable

It's used for indexing in joins. It looks like you are using the experimental multi-threading mode, I'd recommend you disable that, and try the latest 5.6.0.SNAPSHOT builds if you have problems. Mark On 11 May 2013, at 17:01, Ming Fang <mingfang(a)mac.com&gt; wrote: > What is the purpose of RightTupleIndexHashTable? > We are getting the exception below but unable to come up with a self contained unit test to demonstrate the problem. > > Caused by: java.lang.NullPointerException: null > at org.drools.core.util.index.RightTupleIndexHashTable.removeAdd(RightTupleIndexHashTable.java:344) ~[drools-core-5.5.0.Final.jar:5.5.0.Final] > at org.drools.reteoo.JoinNode.modifyRightTuple(JoinNode.java:224) ~[drools-core-5.5.0.Final.jar:5.5.0.Final] > at org.drools.reteoo.PropagationQueuingNode$ModifyToSinkAction.execute(PropagationQueuingNode.java:513) ~[drools-core-5.5.0.Final.jar:5.5.0.Final] > at org.drools.reteoo.PropagationQueuingNode.propagateActions(PropagationQueuingNode.java:280) ~[drools-core-5.5.0.Final.jar:5.5.0.Final] > at org.drools.reteoo.PropagationQueuingNode$PropagateAction.execute(PropagationQueuingNode.java:588) ~[drools-core-5.5.0.Final.jar:5.5.0.Final] > at org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:993) [drools-core-5.5.0.Final.jar:5.5.0.Final] > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users