8169344: Potential open file descriptor in exists() of hotspot/agent/src/os/bsd/ps_core.c Summary: Use access() instead of open() to check for the existence of a file Reviewed-by: dsamersoff, dholmes Contributed-by: jini.george@oracle.com

^build/
^dist/
^.idea/
nbproject/private/
^webrev
^.hgtip
^.bridge2
^.jib/
.DS_Store
.metadata/
.recommenders/