Invalid type declaration in DRL throws a NullPointerException instead of the real error --------------------------------------------------------------------------------------- Key: DROOLS-543 URL: https://issues.jboss.org/browse/DROOLS-543 Project: Drools Issue Type: Bug Security Level: Public(Everyone can see) Affects Versions: 6.2.0.CR1 Reporter: Esteban Aliverti Assignee: Mark Proctor Priority: Minor When a declared type has compilation errors, kbuilder continues with the compilation of the rules. Under certain scenarios this causes a confusing NPE.