RFR: 8349670: HttpServer: sending interim responses fails after JDK-7026262 [v8]

[Daniel Fuchs]

On Tue, 23 Sep 2025 17:43:42 GMT, Josiah Noel <duke at openjdk.org> wrote:

>> Following the guideline of the last comment on [JDK-8349670](https://bugs.openjdk.org/browse/JDK-8349670?focusedId=14794649&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14794649), resolves the issue where sending a 1xx status code would close the input stream, preventing the server from reading the body. 
>> 
>> - When a 1xx status code is sent by `sendResponseHeaders`, the input/output streams will not be closed prematurely.
>> - sentHeaders will not be set to true when sending 1xx status codes
>
> Josiah Noel has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Update InputRead100Test.java

Hi Josiah, I'm seeing `com/sun/net/httpserver/ServerStopTerminationTest.java` failing intermittently in the CI with your changes. I am not fully confident it's attributable to your changes, but it does seem suspicious and would need to be investigated.

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PR Comment: https://git.openjdk.org/jdk/pull/27069#issuecomment-3328472508