RFR: JDK-8306441: Two phase segmented heap dump [v16]

[Yi Yang]

On Tue, 11 Jul 2023 20:49:35 GMT, Chris Plummer <cjplummer at openjdk.org> wrote:

>> Yi Yang has updated the pull request incrementally with two additional commits since the last revision:
>> 
>>  - whitespace
>>  - add test
>
> BTW, `serviceability/dcmd/gc/HeapDumpAllTest.java` is failing due to build failures when compiling the test.

PING: @plummercj @kevinjwalls any further review comments? Thanks.

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PR Comment: https://git.openjdk.org/jdk/pull/13667#issuecomment-1655244031