Process trees and termination

[roger riggs]

Hi,

The next step for JEP 102, Process API Updates is to provide an API to
enumerate the hierarchy of processes and to be able to terminate a 
process tree.

This draft javadoc <http://bussund0416/%7Erriggs/pdoc/>update [1] includes:
  - ProcessHandle class to provide handles to processes, their children,
     parent, process id and liveness
  - Process extends ProcessHandle and inherits the new behaviors
  - Method destroyProcessTree() terminates a process tree

Additional functions related to termination and information about processes
will be added in a later update.

Comments appreciated, Roger

[1] http://cr.openjdk.java.net/~rriggs/ph-apidraft/