JavaGCHeap 10 true JavaGCHeap false java.lang:type=Memory dynamic NA direct _ HeapMemoryUsage 1 CompositeData 1 committed HeapMemoryAllocatedInKb 2 2 HeapMemoryUsage 1 CompositeData 3 used HeapMemoryUsedInKb 2 4 HeapUsedMemoryPercentage 2 5