RFR: 8331195: Improve com.sun.net.httpserver.HttpExchange usability [v5]

[Daniel Fuchs]

On Wed, 5 Nov 2025 15:17:35 GMT, Michael McMahon <michaelm at openjdk.org> wrote:

>> I'd like to return to this issue with a new PR that addresses the usability issue minimally. Namely to define numeric constants
>> for the counter-intuitive responseLength values in `HttpExchange.sendResponseHeaders`. The apidoc then refers to the constant names rather than the numeric values.
>> 
>> I've updated the implementation and some tests (though not all yet) to use the constant names. I'm open to suggestions on the names themselves. Once that is agreed, I'll update the remaining tests and any other call sites in the implementation.
>> 
>> Thanks,
>> Michael
>
> Michael McMahon has updated the pull request incrementally with one additional commit since the last revision:
> 
>   update

I don't disagree but adding new APIs is a bigger maintenance cost than adding two simple constants.
I believe the proposed change will improve the usability. The `sendResponseHeaders(int, long)` cannot be removed, and even if we added a new API it would still be here. There's also the impacts on the SPI to take into account.

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PR Comment: https://git.openjdk.org/jdk/pull/28132#issuecomment-3492203779