Re: [rules-users] NPE for any @role( event )

This is indeed very confusing. The methods public static KnowledgeBuilder newKnowledgeBuilder(KnowledgeBase kbase) public static KnowledgeBuilder newKnowledgeBuilder(KnowledgeBase kbase, KnowledgeBuilderConfiguration conf) are - although in the stable API - without any documentation. Apparently it is an alternative way for populating a KBase, but who knows? Why just a @role(event) is disregarded when these forms of builder creation is used looks like a bug to me. -W