Events that have already expired when inserted may trigger rules before expiring -------------------------------------------------------------------------------- Key: DROOLS-997 URL: https://issues.jboss.org/browse/DROOLS-997 Project: Drools Issue Type: Bug Components: core engine Affects Versions: 6.1.0.Final Environment: BRMS CEP 6.1.3 GA Reporter: Chris Pitman Assignee: Mario Fusco Labels: fusion Events that have already expired when they are inserted have their expiration times changed to the insertion time, which will not expire until the clock ticks at least once. Isee the following in `drools-core/src/main/java/org/drools/core/phreak/PropagationEntry.java`: {code:java} long effectiveEnd = eventFactHandle.getEndTimestamp() + expirationOffset; long nextTimestamp = Math.max( insertionTime, effectiveEnd >= 0 ? effectiveEnd : Long.MAX_VALUE ); if (nextTimestamp < workingMemory.getTimerService().getCurrentTime()) {code} So if current time is still insertion time, the event is not expired.