hg: code-tools/jmh: Add two integration tests to verify forceful shutdown works.

[aleksey.shipilev at oracle.com]

Changeset: bc6354c5d6ce
Author:    shade
Date:      2015-06-25 21:20 +0300
URL:       http://hg.openjdk.java.net/code-tools/jmh/rev/bc6354c5d6ce

Add two integration tests to verify forceful shutdown works.

+ jmh-core-it/src/test/java/org/openjdk/jmh/it/errors/ForkedStuckShutdownHookTest.java
+ jmh-core-it/src/test/java/org/openjdk/jmh/it/errors/ForkedStuckThreadTest.java