serviceability/sa/jmap-hprof/JMapHProfLargeHeapTest.java fails on all platforms on JDK 10 (is working find with 9).

Exception in thread "main" java.lang.reflect.InaccessibleObjectException: Unable to make field private final sun.management.VMManagement sun.management.RuntimeImpl.jvm accessible: module java.management does not "opens sun.management" to unnamed module @2d6eabae
at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:207)
at java.base/java.lang.reflect.Field.checkCanSetAccessible(Field.java:171)
at java.base/java.lang.reflect.Field.setAccessible(Field.java:165)
at JMapHProfLargeHeapProc.getProcessId(JMapHProfLargeHeapProc.java:59)
at JMapHProfLargeHeapProc.main(JMapHProfLargeHeapProc.java:41)