RFR: 8364213: (bf) Improve java/nio/Buffer/GetChars.java test comments [v4]

[Roger Riggs]

On Fri, 1 Aug 2025 13:37:29 GMT, Brett Okken <duke at openjdk.org> wrote:

>> test/jdk/java/nio/Buffer/CharBufferAsCharSequenceTest.java line 104:
>> 
>>> 102:      * <li>String - description of the test scenario</li>
>>> 103:      * </ul>
>>> 104:      */
>> 
>> That helps a bit but I think we need to break up charBufferArguments into simpler/maintainable methods that have clear comments to document the test cases that they generate. Right now it's just way too hard to see what is tested and not tested.
>
> @AlanBateman @RogerRiggs any thoughts on just keeping the "random" tests and removing the "static"?
> 
> As I started breaking the static tests up into simpler methods, they ended up looking like the "random" tests, just with fixed offsets instead of what `randomizeRange` is doing, which did not really seem all that valuable.

If they duplicate the random tests, then can be removed.
Which cases would you remove?

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PR Review Comment: https://git.openjdk.org/jdk/pull/26512#discussion_r2248098512