Hi David, sorry but it's impossible for us to figure out what's going wrong in your case just looking at the stack trace you sent. Have you been able to consistently reproduce this problem? If so could you open a ticket on jira and share your reproducer there?
Thanks, Mario -- View this message in context: http://drools.46999.n3.nabble.com/rules-users-NPE-in-LeftTupleSetsImpl-removeUpdate-tp4030544p4030724.html Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users