There is frysk.sys.Pid.get ().
Index: frysk-core/frysk/rt/ChangeLog 2006-12-09 Andrew Cagney <cagney@redhat.com> * tests/TestRunState.java: Use frysk.sys.Pid.get. * tests/TestStepping.java: Ditto. * tests/TestStackBacktrace.java: Ditto. * tests/TestLib.java: Delete. * tests/cni/TestLib.cxx: Delete.