Hi Guys, Drools 3 throws "RuntimeDroolsException" However is it nested? I am finding that say one of my objects passed in has a null property (forced error) I get the above exception with a nested null pointer exception. However it does not give any useful information like, what rule/condition the null pointer ocurred in. Am I catching the right exception? Cheers, Matt. Matt Shaw Snr Applications Developer Service Performance & Management Unit Phone: 3247 8666. ext. 94666 This correspondence is for the named persons only. It may contain confidential or privileged information or both. No confidentiality or privilege is waived or lost by any mis transmission. If you receive this correspondence in error please delete it from your system immediately and notify the sender. You must not disclose, copy or relay on any part of this correspondence, if you are not the intended recipient. Any opinions expressed in this message are those of the individual sender except where the sender expressly, and with the authority, states them to be the opinions of the Department of Emergency Services, Queensland. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users