hg: jdk/hs: 8175312: SA: clhsdb: Provide an improved heap summary for 'universe' for G1GC

[jini.george at oracle.com]

Changeset: ccb003941743
Author:    jgeorge
Date:      2018-03-20 11:24 +0530
URL:       http://hg.openjdk.java.net/jdk/hs/rev/ccb003941743

8175312: SA: clhsdb: Provide an improved heap summary for 'universe' for G1GC
Summary: Provide an improved heap summary for G1GC with parameters like 'capacity', 'used', 'free', etc with the 'universe' command, and introduce a new command 'g1regiondetails' to display the individual region details.
Reviewed-by: sjohanss, minqi

! src/hotspot/share/gc/g1/vmStructs_g1.hpp
! src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/CommandProcessor.java
! src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/gc/g1/G1CollectedHeap.java
! src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/gc/g1/HeapRegion.java
! src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/gc/g1/HeapRegionType.java
+ src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/gc/shared/PrintRegionClosure.java
! src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/tools/HeapSummary.java
+ test/hotspot/jtreg/serviceability/sa/ClhsdbRegionDetailsScanOopsForG1.java
+ test/hotspot/jtreg/serviceability/sa/LingeredAppWithLargeStringArray.java
! test/hotspot/jtreg/serviceability/sa/TestUniverse.java