RFR: 8333358: java/io/IO/IO.java test fails intermittently [v5]

[Naoto Sato]

On Thu, 20 Jun 2024 09:56:45 GMT, Pavel Rappo <prappo at openjdk.org> wrote:

>> Please review this fix for an intermittent test failure.
>> 
>> On some configurations, the default `expect` timeout of 10 seconds is insufficient. It is increased to 20; it's hard to imagine a configuration for which that new value would still be insufficient, but we'll see.
>> 
>> Aside from that, test-generated diagnostics are improved: the version of the `expect` command and the duration of each test method are recorded. `output.exp` is modified for robustness and clear indication of the timeout condition.
>> 
>> I was reminded, out-of-band, that test timeouts should be scaled with `test.timeout.factor`. I propose to integrate this PR first and then separately update all the affected tests to scale their `expect` timeouts.
>
> Pavel Rappo has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains six additional commits since the last revision:
> 
>  - Merge branch 'master' into 8333358
>  - Merge branch 'master' into 8333358
>  - Add a comment for future maintainers
>  - Disable timeout in expect scripts
>  - Change url as suggested in review
>  - Initial commit

Marked as reviewed by naoto (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/19627#pullrequestreview-2130880264