Hi all,

When exceptions occur during runtime of drools, is there a list of things to see to understand what may be causing
this to happen ? I know it is a very generic question. I want to see if there is a methodical way to understand what
to look for ?.

org.drools.RuntimeDroolsException: Exception executing predicate com.makesys.fs.is.dnpiac.vendorBehaviour.snmp.Rule_Cisco_Systems_0ReturnValue0Invoker@39d31fda
INFO | jvm 1 | 2007/09/14 16:46:33 | at org.drools.rule.PredicateConstraint.isAllowed(PredicateConstraint.java:197)
INFO | jvm 1 | 2007/09/14 16:46:33 | at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:122)
INFO | jvm 1 | 2007/09/14 16:46:33 | at org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:317)
INFO | jvm 1 | 2007/09/14 16:46:33 | at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:130)
INFO | jvm 1 | 2007/09/14 16:46:33 | at org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:20)
INFO | jvm 1 | 2007/09/14 16:46:33 | at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:168)
INFO | jvm 1 | 2007/09/14 16:46:33 | at org.drools.reteoo.Rete.assertObject(Rete.java:168)
INFO | jvm 1 | 2007/09/14 16:46:33 | at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:190)
INFO | jvm 1 | 2007/09/14 16:46:33 | at org.drools.reteoo.ReteooWorkingMemory.doInsert (ReteooWorkingMemory.java:70)
INFO | jvm 1 | 2007/09/14 16:46:33 | at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:848)
INFO | jvm 1 | 2007/09/14 16:46:33 | at org.drools.common.AbstractWorkingMemory.insert (AbstractWorkingMemory.java:822)
INFO | jvm 1 | 2007/09/14 16:46:33 | at org.drools.base.DefaultKnowledgeHelper.insert(DefaultKnowledgeHelper.java:60)
INFO | jvm 1 | 2007/09/14 16:46:33 | at org.drools.base.DefaultKnowledgeHelper.insert (DefaultKnowledgeHelper.java:54)

Any help is appreciated ?

thanks,
Krishnan.

--
Sivaramakrishna Iyer Krishnan (Anand)

Never assume the obvious is true.
- William Safire