Review request for 8029378: com/sun/jdi/BadHandshakeTest.java failed with java.util.concurrent.TimeoutException

[shanliang]

Hi,

Please review this simple fix, the test needs  more time to wait 
Phaser.awaitAdvanceInterruptibly(...).

webrev: http://cr.openjdk.java.net/~sjiang/JDK-8029378/00/
bug: https://bugs.openjdk.java.net/browse/JDK-8029378

Thanks,
Shanliang