This is a second stab at cleaning up the close() and finalize() methods
for FileInputStream / FileOutputStream / RandomAccessFile classes so
that all parents/referents sharing the same native FileDescriptor are
closed out correctly.
With Alan's assistance, we have a better implementation in place where
we avoid the use of counters and instead cycle through a list of shared
closeables when a FileDescriptor is being shared.
Bug report (not visible yet) http://bugs.sun.com/view_bug.do?bug_id=7105952
webrev : http://cr.openjdk.java.net/~coffeys/webrev.7105952/
regards,
Sean.
