RFR: 8368821: Test java/net/httpclient/http3/GetHTTP3Test.java intermittently fails with java.io.IOException: QUIC endpoint closed

[Jaikiran Pai]

On Fri, 3 Oct 2025 07:13:21 GMT, Jaikiran Pai <jpai at openjdk.org> wrote:

> Can I please get a review of this test-only change which addresses intermittent failures in `GetHTTP3Test` and `PostHTTP3Test`?
> 
> As noted in https://bugs.openjdk.org/browse/JDK-8368821, these two tests have been reported to fail intermittently, especially when the host on which it runs is under heavy resource usage or when run with JVM options like `-Xcomp`.
> 
> The commit in this PR removes the connection timeout that was enforced on the connection attempts by the test. As far as I can see, they aren't necessary for what this test is testing. The change also updates a few other places in this test which had specific values for timeouts when checking if the `HttpClient` had shutdown. These places have been updated to take into account the timeout factor when computing the timeout.
> 
> The changes have been verified by Matthias and SendaoYan who originally reported these issues. I will run this change in our CI too before integrating.

Thank you Daniel for the review. tier testing with these changes in our CI came back fine.

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PR Comment: https://git.openjdk.org/jdk/pull/27619#issuecomment-3368010818