RFR: 8356171: Increase timeout for testcases as preparation for change of default timeout factor

[Daniel Fuchs]

On Thu, 8 May 2025 17:41:02 GMT, Daniel Fuchs <dfuchs at openjdk.org> wrote:

> Thank you. I have imported your PR locally and running some HTTP client tests in the CI.
> Tests have not finished running - but I already see one intermittent failure:
> `java/net/httpclient/RedirectTimeoutTest.java` is timing out intermittently on windows.
> It would be good to flush out any such intermittent failures before this PR is integrated.
> This might require multiple runs before we can get confidence.

Results came back - another intermittent timeout failure (much more frequent) observed in:
`java/net/httpclient/CancelledResponse.java` on macOS x64

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PR Comment: https://git.openjdk.org/jdk/pull/25122#issuecomment-2865413003