RFR: 8367976: Validate and clamp jdk.httpclient.bufsize [v4]

[Volkan Yazici]

On Tue, 21 Oct 2025 09:42:56 GMT, Daniel Fuchs <dfuchs at openjdk.org> wrote:

>> Volkan Yazici has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains five additional commits since the last revision:
>> 
>>  - Merge remote-tracking branch 'upstream/master' into bufSizeClamp
>>  - Switch to POST and repeated-request in `BufferSize1Test`
>>  - Apply property doc suggestion
>>    
>>    Co-authored-by: Daniel Fuchs <67001856+dfuch at users.noreply.github.com>
>>  - Update `module-info.java` docs
>>  - Clamp `Utils::BUFSIZE`
>
> test/jdk/java/net/httpclient/BufferSize1Test.java line 143:
> 
>> 141:     }
>> 142: 
>> 143:     private static final class BodyEchoingHandler implements HttpServerAdapters.HttpTestHandler {
> 
> You could simply use / extend the HttpServerAdapters.HttpTestEchoHandler;
> Also consider implementing HttpServerAdapters in the test class to get rid of the leading HttpServerAdapters qualifier.

`HttpTestEchoHandler` is a nice tip! In 92f07382f12, employed it and along with styling changes to remove all `HttpServerAdapters` qualifiers.

I'll go with importing whatever I need from `HttpServerAdapters`. I am uncomfortable with extending from `HttpServerAdapters` since its API surface is vast and certain method calls (e.g., `createClientBuilderFor()`) still must be qualified.

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PR Review Comment: https://git.openjdk.org/jdk/pull/27874#discussion_r2449199282