RFR: 8326227: Rounding error that may distort computeNextGaussian results [v3]

[Jaikiran Pai]

On Wed, 21 Feb 2024 02:18:08 GMT, Chris Hennick <duke at openjdk.org> wrote:

>> This provides a slightly more accurate bounding limit for `computeNextExponentialSoftCapped` when calling it from `computeNextGaussian`. This could cause the `while (computeNextExponentialSoftCapped(rng, limit) < limit)` check in `computeNextGaussian` on line 1402 to always be true, making the `nextGaussian` runtime unbounded in the worst case; but more likely, it would give a result that was truncated too close to zero.
>> 
>> This change is being tested prior to submission to OpenJDK by https://github.com/openjdk/jdk/pull/17703/commits/b8be051cbf40a6a05fafc6a2c76942e9e0b11fdf.
>
> Chris Hennick has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Bug fix: add-exports was for wrong package

test/jdk/jdk/internal/util/random/RandomSupportTest.java line 5:

> 3:  * @bug 8326227
> 4:  * @modules java.base/jdk.internal.util.random
> 5:  * @summary Verify that RandomSupport methods behave as specified

Nit - can you move this `@summary` line after the `@bug` line? It would then match the recommended tag order https://openjdk.org/jtreg/tag-spec.html#ORDER

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PR Review Comment: https://git.openjdk.org/jdk/pull/17703#discussion_r1636122002