RFR: 8253495: CDS generates non-deterministic output [v2]

[David Holmes]

On Thu, 10 Mar 2022 12:50:58 GMT, Magnus Ihse Bursie <ihse at openjdk.org> wrote:

>> Ioi Lam has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Fixed zero build
>
> Well, previously we'd get different dumps on different runs. If that was an issue, surely it would have manifested itself by now? With this change, we'll just get the same dump each run. I fail to see how that could be a risk.

@magicus  I think we need @iklam to weigh in here and explain exactly what the "heap dump" consists of and how not running those threads affects its contents. Presently the heap dump is potentially different on each run, IIUC, only due to the order of its contents, not the contents themselves.

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PR: https://git.openjdk.java.net/jdk/pull/7748