RFR: 8065554: MatchResult should provide values of named-capturing groups [v5]

[Stuart Marks]

On Wed, 31 Aug 2022 13:26:32 GMT, Raffaello Giulietti <duke at openjdk.org> wrote:

>> Add support for named groups to java.util.regex.MatchResult
>
> Raffaello Giulietti has updated the pull request incrementally with one additional commit since the last revision:
> 
>   8065554: MatchResult should provide values of named-capturing groups

src/java.base/share/classes/java/util/regex/MatchResult.java line 319:

> 317:      *
> 318:      * @throws UnsupportedOperationException
> 319:      *          The default implementation of this method always throws

The `@throws` clause needs to state a general contract over all implementations, so it should say something like, "@throws UOE if the implementation does not support named groups". Then, the specification for the default implementation always throwing UOE should be moved to `@implSpec`.

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PR: https://git.openjdk.org/jdk/pull/10000