[jboss-jira] [JBoss JIRA] Assigned: (JBRULES-1001) NullPointerException when a function is used inside a predicate value constraint

NullPointerException when a function is used inside a predicate value constraint -------------------------------------------------------------------------------- Key: JBRULES-1001 URL: http://jira.jboss.com/jira/browse/JBRULES-1001 Project: JBoss Rules Issue Type: Bug Security Level: Public(Everyone can see) Affects Versions: 4.0.0.MR3 Reporter: Edgardo Carena Assigned To: Edson Tirelli Priority: Minor if you change the FibonacciExample like this: (...) import java.lang.Math; function boolean approxEqual(double val1, double val2) { return (Math.abs(val1-val2)<0.01); } (....) rule Calculate when f1 : Fibonacci( s1 : sequence, value != -1 ) f2 : Fibonacci( s2 : sequence -> (approxEqual(sequence,(s1 + 1))), value != -1 ) f3 : Fibonacci( sequence == (s2 + 1 ), value == -1 ) then f3.setValue( f1.getValue() + f2.getValue() ); update( f3 ); retract( f1 ); System.out.println( f3.getSequence() + " == " + f3.getValue() ); end thus introducing a function inside a predicate value constraint, the example works well, however a NullPointerException is printed out during the call of the addPackageFromDrl method. I tried in many examples, also calling directly the java.lang.Math.abs function, and the message is always printed with no apparent side effect.