Integrated: 8318492: Http2ClientImpl should attempt to close and remove connection in stop()

[Conor Cleary]

On Tue, 24 Oct 2023 09:46:40 GMT, Conor Cleary <ccleary at openjdk.org> wrote:

> If Http2ClientImpl::stop() is called, it will loop through the connections map and call the close() method on each connection. The changes in this PR make sure that the connection thread (where close is called from) removes the `Http2Connection` from the connection pool to prevent inactive connections from remaining in there rather than just closing it. 
> 
> Even though the connection can be and usually is removed from the pool in other places (reader or writer thread), this change ensures removal from the pool in cases where the connection is shutdown by an exception, reset, etc. The issue was first spotted when a RST_STREAM triggered repeated attempts to remove idle connections from the pool before a regular shutdown could occur.

This pull request has now been integrated.

Changeset: 576c9bcc
Author:    Conor Cleary <ccleary at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/576c9bccfbe6718fe8fe409bc165000bd1554589
Stats:     4 lines in 1 file changed: 2 ins; 0 del; 2 mod

8318492: Http2ClientImpl should attempt to close and remove connection in stop()

Reviewed-by: dfuchs, jpai

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PR: https://git.openjdk.org/jdk/pull/16340