RFR: 8071277: G1: Merge commits and uncommits of contiguous memory [v4]

[Thomas Schatzl]

On Mon, 29 Sep 2025 10:03:44 GMT, Ivan Walulya <iwalulya at openjdk.org> wrote:

>> Thomas Schatzl has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   * walulyai review
>>   * remove debug log messages
>
> Marked as reviewed by iwalulya (Reviewer).

Thanks @walulyai @albertnetymk for your review

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PR Comment: https://git.openjdk.org/jdk/pull/27381#issuecomment-3346085414