RFR: 8329829: HttpClient: Add a BodyPublishers.ofFileChannel method [v4]

[Volkan Yazici]

On Thu, 31 Jul 2025 06:30:16 GMT, Jaikiran Pai <jpai at openjdk.org> wrote:

> add a test which uses send()

@jaikiran, in faa5d24d831, I've adapted all exception verification tests to take both `send()` and `sendAsync()` into account.

>  both send() and sendAsync() should propagate the same exception

Right. I will discuss this with @dfuch and @Michael-Mc-Mahon.

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PR Review Comment: https://git.openjdk.org/jdk/pull/26155#discussion_r2253945179