6545422: [TESTBUG] NativeErrors.java uses wrong path name in exec Summary: Uses common testlibrary to find executable. Removed NullPointerExceptions. Log more. Reviewed-by: sla Contributed-by: mattias.tobiasson@oracle.com

^build/
^dist/
nbproject/private/
^webrev
^.hgtip
^.bridge2
.DS_Store