On Wed, 26 Feb 2025 11:19:08 GMT, Volkan Yazici <vyaz...@openjdk.org> wrote:
>> Hi - Please find here a PR that improves streaming strategy in the
>> HttpClient.
>>
>> The HttpClient currently waits until the full request body has been sent
>> before starting to listen for a response. This is not optimal, in particular
>> in cases where the server sends back e.g. 500 without even reading the body.
>> It also prevents starting to stream the response body from the server before
>> having sent the full request body, which prevents the server to stream back
>> the request body to the client without reading it fully first.
>>
>> While writing a test to verify the fix, I also noticed a few places where
>> additional tasks needed to be performed asynchronously (= delegated to the
>> executor) to support this.
>
> src/java.net.http/share/classes/jdk/internal/net/http/Exchange.java line 428:
>
>> 426: var sendBody = exchImpl.sendBodyAsync();
>> 427: CompletableFuture<Response> cf =
>> exchImpl.getResponseAsync(executor);
>> 428: sendBody.exceptionally((t) -> {
>
> Shouldn't this be `sendBody = sendBody.exceptionally(...)`?
No - because if sendBody is completed exceptionally we want the dependent
action to be executed. So `sendBody` should be the head, not the tail.
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PR Review Comment: https://git.openjdk.org/jdk/pull/23716#discussion_r1971423491
