hg: jdk9/dev: 8166262: failurehandler should not use jtreg internal API

[igor.ignatyev at oracle.com]

Changeset: 3803b441db32
Author:    iignatyev
Date:      2016-09-20 16:56 +0300
URL:       http://hg.openjdk.java.net/jdk9/dev/rev/3803b441db32

8166262: failurehandler should not use jtreg internal API
Reviewed-by: sla, dsamersoff

! test/failure_handler/src/share/classes/jdk/test/failurehandler/jtreg/GatherDiagnosticInfoObserver.java
! test/failure_handler/src/share/classes/jdk/test/failurehandler/jtreg/GatherProcessInfoTimeoutHandler.java
+ test/failure_handler/src/share/classes/jdk/test/failurehandler/jtreg/OS.java