JDK-8041946 : CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: 8u40,9
  • Priority: P2
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2014-04-25
  • Updated: 2015-06-03
  • Resolved: 2014-09-11
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8u40Fixed 9 b33Fixed
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Test similar to  gc/g1/TestHumongousShrinkHeap.java is required. 

Test should allocate small objects mixed with humongous ones
Release all allocated object except the last humongous one
Invoke gc and check that memory returned to the system (amount of committed memory got down)
Requested tests is similar to one requested in JDK-8037925, but a bit different.

JDK-8038423 is the issue that implements the functionality required for this test.

Please add link to review.

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