[rules-dev] possible bug, NPE in PackageBuilder.java

PackageBuilder.java at line 688: public synchronized void addPackage(final Package newPkg) { Package pkg = this.pkgRegistryMap.get( newPkg.getName() ).getPackage(); if pkgRegistryMap is empty as it should probably be initially adding a new package will cause a NPE. This fuction assumes that there is always a package in the packageRegistryMap. I am getting a NPE when I am trying something like: KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder(); kbuilder.add(ResourceFactory.newUrlResource("a valid url"), ResourceType.PKG); thanks for any help --zoly