Timer nullpointer due to race condition during update ----------------------------------------------------- Key: DROOLS-284 URL: https://issues.jboss.org/browse/DROOLS-284 Project: Drools Issue Type: Feature Request Security Level: Public(Everyone can see) Reporter: Mark Proctor Assignee: Mark Proctor Fix For: 6.0.0.CR5 If the timer fires at the same time as an update it results in the child being propagated twice. We need to synchronize to ensure that this does not happen. The update should cancel the timer, so it doens't try and schedule a propagation.