hg: openjfx/9-dev/rt: 8147427: refactor test launchers to support jake

[david.hill at oracle.com]

Changeset: 179d277e7f4c
Author:    ddhill
Date:      2016-02-17 17:56 -0500
URL:       http://hg.openjdk.java.net/openjfx/9-dev/rt/rev/179d277e7f4c

8147427: refactor test launchers to support jake
Reviewed-by: kcr

! tests/system/src/test/java/test/launchertest/MainLauncherTest.java
! tests/system/src/test/java/test/sandbox/SandboxAppTest.java
! tests/system/src/test/java/test/shutdowntest/ShutdownHookTest.java
! tests/system/src/test/java/test/util/Util.java