[11] JDK-8202623 : Some launcher tests will hang if underlying process exits too early

[Ambarish Rapte]

Hi Kevin & Ajit,

                Request you to review this fix.

                Webrev: http://cr.openjdk.java.net/~arapte/fx/8202623/webrev.00/
                Bug: https://bugs.openjdk.java.net/browse/JDK-8202623



Regards,

Ambarish