RFR: 8300268 : ServerImpl allows too many idle connections when using sun.net.httpserver.maxIdleConnections [v4]

[Daniel Fuchs]

On Wed, 8 Feb 2023 18:28:17 GMT, Darragh Clarke <duke at openjdk.org> wrote:

>> Currently there is a race condition that can allow for too many 'idleConnections' in `ServerImpl`
>> 
>> This PR adds a lock to make sure only one connection can be marked Idle at a time as well as a test that consistently failed before the change but which now passes.
>
> Darragh Clarke has updated the pull request incrementally with two additional commits since the last revision:
> 
>  - removed unused variable
>  - changed test to use URIBuilder, fixed print, changed serverimpl to use sync instead of lock

Marked as reviewed by dfuchs (Reviewer).

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PR: https://git.openjdk.org/jdk/pull/12413