[rules-users] Guvnor test scenarios for rules that use globals

In Guvnor 5.1 I have several rules that invoke services defined as globals. Rules that invoke methods on these globals run OK when deployed, but a test scenario that triggers such a rule gets an exception. For example, with a global named "logger" a rule that has in its THEN clause: logger.debug("customer was added to session"); Test Scenario that triggers this rule gets the error: [Error: unable to access property (null parent): debug] Thanks for your help.