Hi, I am trying a remove a rule from the RuleBase using the following syntax and get a NullPointerException: ruleBase.removePackage("rule2392016206"); Before removing the package, I am iterating through all the packages in the ruleBase and I can see this package name in the list. I am not sure why this exception is being thrown then. I am using 4.0 MR3. Has this feature changed since 3.0.6? Thanks. Sarika