git: openjdk/jdk11u-dev: 8237354: Add option to jcmd to write a gzipped heap dump

[Christoph Langer]

Changeset: 1868c15d
Author:    Bin Liao <buddyliao at tencent.com>
Committer: Christoph Langer <clanger at openjdk.org>
Date:      2021-09-13 13:31:49 +0000
URL:       https://git.openjdk.java.net/jdk11u-dev/commit/1868c15d4e5d03895a4a07edacd864021dfbac57

8237354: Add option to jcmd to write a gzipped heap dump

Reviewed-by: rschmelter, clanger
Backport-of: 19be49714356f2f598924c9fefa6358679ab6dbe

! src/hotspot/share/gc/shared/workgroup.cpp
! src/hotspot/share/gc/shared/workgroup.hpp
! src/hotspot/share/services/diagnosticCommand.cpp
! src/hotspot/share/services/diagnosticCommand.hpp
! src/hotspot/share/services/heapDumper.cpp
! src/hotspot/share/services/heapDumper.hpp
+ src/hotspot/share/services/heapDumperCompression.cpp
+ src/hotspot/share/services/heapDumperCompression.hpp
! src/java.base/share/native/libzip/zip_util.c
+ test/hotspot/jtreg/serviceability/dcmd/gc/HeapDumpCompressedTest.java
+ test/lib/jdk/test/lib/hprof/parser/GzipRandomAccess.java
! test/lib/jdk/test/lib/hprof/parser/HprofReader.java
! test/lib/jdk/test/lib/hprof/parser/Reader.java