jmx-dev RFR 7132590: javax/management/remote/mandatory/notif/NotificationAccessControllerTest.java fails in JDK8-B22

[Jaroslav Bachorik]

Please, review the following test change.

Issue : https://bugs.openjdk.java.net/browse/JDK-7132590
Webrev: http://cr.openjdk.java.net/~jbachorik/7132590/webrev.00

Currently, the test waits for an arbitrary time until it gives up on 
receiving the notifications. This leads to intermittent failures in 
situations when the execution is slower than anticipated (running 
against a debug build etc.).

The solution is to block the test until all the expected notification 
had been delivered or the test is timed out by the harness.

Thanks,

-JB-