Mike Melton created JBRULES-3421: ------------------------------------ Summary: FireAllRulesCommand NPE when outIdentifier != null Key: JBRULES-3421 URL: https://issues.jboss.org/browse/JBRULES-3421 Project: Drools Issue Type: Bug Security Level: Public (Everyone can see) Components: drools-core Affects Versions: 5.4.0.Beta1, 5.3.1.Final Reporter: Mike Melton Assignee: Mark Proctor Priority: Minor See mailing list post for full details: http://drools.46999.n3.nabble.com/rules-users-NPE-in-FireAllRulesCommand-... The short version is that if you execute a BatchExecutionCommand containing a FireAllRulesCommand which itself has a non-null outIdentifier, a NPE is thrown due to the expression "(ExecutionResultImpl) ((KnowledgeCommandContext) context).getExecutionResults()" returning null. This is because the context object which is passed into the execute method contains a null results object. I have written unit tests demonstrating the problem and have coded a fix which differs from my suggestion in the mailing list post in that it is confined to FireAllRulesCommand.java (i.e., it doesn't touch StatelessKnowledgeSessionImpl.java). I will attach a basic unit test to this issue and submit a pull request with both more thorough tests and the fix. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.jboss.org/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira