Retract error: handle not found for object: null. Is it in the working memory? ------------------------------------------------------------------------------ Key: JBRULES-1571 URL: http://jira.jboss.com/jira/browse/JBRULES-1571 Project: JBoss Drools Issue Type: Bug Security Level: Public (Everyone can see) Reporter: Ming Fang Assigned To: Mark Proctor Priority: Blocker In both version 4.0.4 and 4.07 snapshot I'm getting this after running my application for a while. Since this error does not happen all the time, it looks like some kind of race condition. Caused by: org.drools.FactException: Retract error: handle not found for object: null. Is it in the working memory? at org.drools.base.DefaultKnowledgeHelper.retract(DefaultKnowledgeHelper.java:120) at com.ml.ax.drools.Rule_Retract_Cleanly_Terminated_Orders_0.consequence(Unknown Source) at com.ml.ax.drools.Rule_Retract_Cleanly_Terminated_Orders_0ConsequenceInvoker.evaluate(Unknown Source) at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:550) ... 6 more -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://jira.jboss.com/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira