RFR: 8077587: BigInteger Roots [v50]

[fabioromano1]

On Sun, 27 Jul 2025 07:56:59 GMT, fabioromano1 <duke at openjdk.org> wrote:

>> This PR implements nth root computation for BigIntegers using Newton method.
>
> fabioromano1 has updated the pull request incrementally with one additional commit since the last revision:
> 
>   A zero root's shift can't be excluded

@rgiulietti What do you think about it?

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PR Review Comment: https://git.openjdk.org/jdk/pull/24898#discussion_r2233866616