RFR: 8269685: Optimize HeapHprofBinWriter implementation [v3]

[Lin Zang]

On Mon, 5 Jul 2021 12:04:17 GMT, Lin Zang <lzang at openjdk.org> wrote:

>> This PR rewrite the implementation of the HeapHprofBinWriter, which could simplify the logic of current implementation.
>> please see detail description at https://bugs.openjdk.java.net/browse/JDK-8269685.
>
> Lin Zang has updated the pull request incrementally with one additional commit since the last revision:
> 
>   fix write size issue

Dear All,
May I ask your help to review this PR? it fix the issue JDK-8262386.
I believe this could be a replacement for #2803.  I am planing to close it if this one looks good.

BRs,
Lin

-------------

PR: https://git.openjdk.java.net/jdk/pull/4666