RFR: 8272758: Improve HttpServer to avoid partial file name matches while mapping request path to context path [v2]

[Volkan Yazici]

On Wed, 21 Jan 2026 12:21:42 GMT, Volkan Yazici <vyazici at openjdk.org> wrote:

>> Currently `HttpServer` allows matching a request path `/foobar` to context path `/foo`. Replace this surprising behaviour with a safer approach by requiring exact *path prefix matches*.
>> 
>> 
>>          |           Request path
>>  Context +------+-------+----------+---------
>>   path   | /foo | /foo/ | /foo/bar | /foobar
>> ---------+------+-------+----------+---------
>>  /       |   Y  |   Y   |     Y    |    Y
>>  /foo/   |   N  |   Y   |     Y    |    N
>
> Volkan Yazici has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Add property to switch between prefix matching schemes

@Michael-Mc-Mahon, @dfuch, in e80aabcb7ab, I've added the `sun.net.httpserver.pathMatcher` property to switch between path-prefix and string-prefix matching schemes. See the following screenshots showcasing relevant parts:

### Module Summary page

<img width="1121" height="384" alt="Module Summary page" src="https://github.com/user-attachments/assets/c81944e6-64e7-411b-8f1b-385872fb844d" />

### `HttpServer` page

<img width="1116" height="722" alt="HttpServer page" src="https://github.com/user-attachments/assets/14abc3a6-9fe4-43b8-9973-b9e47e7dcdfd" />

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PR Comment: https://git.openjdk.org/jdk/pull/29264#issuecomment-3777942776