RFR(S): 8081037: serviceability/sa/ tests time out on Windows

[Yekaterina Kantserova]

Hi,

Could I please have a review of this fix.

bug: https://bugs.openjdk.java.net/browse/JDK-8081037
webrev root: http://cr.openjdk.java.net/~ykantser/8081037/webrev.00
webrev jdk: http://cr.openjdk.java.net/~ykantser/8081037.jdk/webrev.00
webrev hotspot: 
http://cr.openjdk.java.net/~ykantser/8081037.hotspot/webrev.00

 From the bug:
"The problem is most likely that SA will pause the target process while 
it is running. In this case, the target process is the same as the 
process that launched SA. That process is also handling the output from 
SA over a pipe, but when that pipe fills up the process cannot empty it 
and the SA process is blocked because it cannot write any more output. 
Deadlock."

The solutions is to start a separate target process. Dmitry Samersoff 
has already created a test application for such cases so I've decided to 
move it on the top level library instead of duplicating it. The test 
application will reside under test/lib/share/classes/jdk/test/lib/apps 
and the test under test/lib-test/jdk/test/lib/apps.

Thanks,
Katja