Re: [rules-users] Rules called with null references?

Another clue: these errors nearly disappear when I change garbage collection settings. I hesitate to say they completely disappear, but in an hour of running I've only seen one exception thrown from inside Drools code, as opposed to many dozens before. The difference is the presence of the options "-XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode". If I run with those, I get activations with null parameters. Without them, I don't. I don't think Drools uses WeakReferences for anything, but I haven't been through all the code. Could something like that be happening? Could the objects be subjected to GC before the activation is created or fires? Oh, I've also added an AgendaListenerEvent that examines the activations for this condition and logs it happening. -- View this message in context: http://drools.46999.n3.nabble.com/Rules-called-with-null-references-tp347... Sent from the Drools: User forum mailing list archive at Nabble.com.