On Thu, 9 Oct 2025 14:04:58 GMT, Josiah Noel <[email protected]> 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
>> - 100-continue will be sent automatically when trying to read the 
>> inputstream if `Expect: 100-continue` header is present
>
> Josiah Noel has updated the pull request incrementally with two additional 
> commits since the last revision:
> 
>  - Update InputRead100Test.java
>  - actually fail if sent twice

The rfc implies that the can send multiple 100 Continue interim responses. A 
client is supposed to ignore unexpected 1xx codes. A second 190 Continue would 
be unexpected.

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PR Comment: https://git.openjdk.org/jdk/pull/27069#issuecomment-3386192800

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