The step command should not be attempting to step a corefile process. Checks need to be made beforehand. Current usage: (fhpd) step Internal Error: java.lang.NullPointerException at frysk.stepping.SteppingEngine.setUp(fhpd) at frysk.stepping.SteppingEngine.stepLine(fhpd) at frysk.hpd.StepCommand.interpret(fhpd) at frysk.hpd.ParameterizedCommand.interpret(fhpd) at frysk.hpd.MultiLevelCommand.interpret(fhpd) at frysk.hpd.CLI.execCommand(fhpd) at frysk.bindir.fhpd.main(fhpd)