Add workaround for HeapDumpContributorTests.dumpHeap test failure

This commit sets the system property
'jdk.management.heapdump.allowAnyFileSuffix' during test execution.

Since JDK 8u141 heap dump names are required to have the suffix
'hprof'.

Also created Bug 535730 to fix the issue and track this workaround.
1 file changed