RFR: CODETOOLS-7903176: Move LJV inside JOL [v2]

[Aleksey Shipilev]

On Mon, 26 Sep 2022 13:53:49 GMT, Ivan Ponomarev <duke at openjdk.org> wrote:

>> This comment is still not addressed.
>
> Well, the situation here is following: we tried to use JOL internals to walk through the graph, but it turned out to be impossible without substantial changes in JOL. So we decided to merge LJV as an addition to JOL and then refactor.
> 
> The plan is to bring LJV as is, and then substitute its graph walking logic with JOL's (maybe in Spring 2023 when I have fresh students).

All right. This would be fine if we have enough test to cover this refactoring. I might get a stab at it after the integration.

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PR: https://git.openjdk.org/jol/pull/24