11u RFR: 8232569: Use test image from different jib profile for testing

[Langer, Christoph]

Hi,

Please help reviewing this Oracle parity backport
Bug: https://bugs.openjdk.java.net/browse/JDK-8232569
Original Change: https://hg.openjdk.java.net/jdk/jdk/rev/559c46cd0e8b
Webrev: http://cr.openjdk.java.net/~clanger/webrevs/8232569.11u/

I had to make several adaptions because some predecessors were missing regarding jcov. Will run the change through our nightly tests but I doubt the file is used there.

Is this file only used in internal Oracle builds or does it have use cases outside? (I guess this question unmasks my ignorance in that area ��)

Thanks
Christoph