NPE when left or right hand fact attribute is null -------------------------------------------------- Key: JBRULES-784 URL: http://jira.jboss.com/jira/browse/JBRULES-784 Project: JBoss Rules Issue Type: Bug Security Level: Public (Everyone can see) Components: Conflict Resolution Affects Versions: 3.1-m1, 3.0.6 Environment: Windows XP, JBoss 4.0.5, Java 1.5 Reporter: David Nelson Assigned To: Mark Proctor When a rule is evaluated, if the left or right side of a comparison is null, then the rule throws a NPE during execution which bubbles to the UI. Here's the simple scenario: Class A has a name attribute. Class B has a name attribute set to "Bob". when b : B() a: A( $name : name, ($name != b.getName()) ) then System.out.println("This is not an issue!"); -- 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