Thank you Julian for this. We do plan to pursue this enhancement further
with the inputs that we have received so far. Once the change/PR is
ready for review, I'll respond here.
-Jaikiran
On 09/01/25 8:00 pm, Julian Reschke wrote:
Hi there.
I'd like to get back to the topic
"Investigate introducing an API on the HttpClient which allows
applications to get access to "interim" HTTP responses" --
https://bugs.openjdk.org/browse/JDK-8294196
To avoid confusion: the *bugs* with respect to handling 1xx responses
have been thankfully fixed (see
https://github.com/openjdk/jdk/pull/10229 and
https://github.com/openjdk/jdk/pull/10169).
What's still missing is a way to actually inspect the contents of the
1xx messages while waiting for a final response (status >= 200). That
could be a callback that provides the status code and the response
header fiels when 1xx messages are received.
This would be useful when processing 103 messages (Early Hints - RFC
8297) or 104 messages (Upload Resumption Supported - used for
"draft-ietf-httpbis-resumable-upload").
Use cases are summarized over here:
https://github.com/greenbytes/java-http-1xx-tests
(tests live here as well).
Let me know if more information is needed.
Best regards, Julian
