hg: jdk9/hs-rt/jdk: 8086134: Deadlock detection fails to attach to core file

[dmitry.samersoff at oracle.com]

Changeset: a0917b713fda
Author:    dsamersoff
Date:      2015-09-24 20:40 +0300
URL:       http://hg.openjdk.java.net/jdk9/hs-rt/jdk/rev/a0917b713fda

8086134: Deadlock detection fails to attach to core file
Summary: Test reimplemented for jtreg
Reviewed-by: jbachorik

+ test/sun/tools/jstack/DeadlockDetectionTest.java