KnowledgeBase knowledgeBase = KnowledgeBaseFactory.newKnowledgeBase();
TraitFactory.setMode( mode, knowledgeBase );
KnowledgeBuilder kb = KnowledgeBuilderFactory.newKnowledgeBuilder();
kb.add( new ByteArrayResource( drl0.getBytes() ), ResourceType.DRL );
assertFalse( kb.hasErrors() );
knowledgeBase.addKnowledgePackages( kb.getKnowledgePackages() );
KnowledgeBuilder kb2 = KnowledgeBuilderFactory.newKnowledgeBuilder();
kb2.add( new ByteArrayResource( drl1.getBytes() ), ResourceType.DRL );
System.out.print( kb2.getErrors() );
assertFalse( kb2.hasErrors() );
knowledgeBase.addKnowledgePackages( kb2.getKnowledgePackages() );