[rules-users] 5.1.1: ArrayIndexOutOfBoundsException in org.drools.core.util.AbstractHashTable

Exception occures at: org.drools.core.util.AbstractHashTable$HashTableIterator.next(AbstractHashTable.java:317) in Drools 5.1.1 when calling insert() on just created StatefulKnowledgeSession. I found similar issues reported for LeftTupleIndexHashTable, it had to do with initializing row to -1 instead of 0 or something similar. I see that fixed in Left/RightTupleIndexHashTable but it seems to me like it is still present in AbstractHashTable. The bug occures randomly (inserting the same data), usualy under load. The index is either -1 or too high. I create multiple sessions in threads from one KnowledgeBase, sessions are not shared. Stack trace I got is: java.lang.ArrayIndexOutOfBoundsException: 16 at org.drools.core.util.AbstractHashTable$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) I am not sure if this post belongs here, sorry if not. Thanks for help/suggestions Lubos -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/5-1-1-ArrayIndexOutOf... Sent from the Drools - User mailing list archive at Nabble.com.