[rules-users] comparisons on Java primitive wrapper class types

In creating a list of rules, I noticed when adding facts to my working memory it may cause errors if Integer or Long values are null (as they are attempting to do comparisons on null objects...even if other conditions previously listed in that particular rule eliminate this fact from that particular conflicting rule), however, I have not noticed this behavior for null String objects. Is this the expected behavior, or should they be defaulting to 0 in the comparisons (much like I am assuming the Strings must be defaulting to empty Strings)? Thanks for any clarification. I am using 3.1M1 if that is relevant as well. Bryan -- View this message in context: http://www.nabble.com/comparisons-on-Java-primitive-wrapper-class-types-t... Sent from the drools - user mailing list archive at Nabble.com.