RFR: 8376630: java/lang/ProcessBuilder/PipelineLeaksFD.java intermittent timed out [v3]

[Roger Riggs]

On Tue, 3 Feb 2026 02:41:41 GMT, SendaoYan <syan at openjdk.org> wrote:

>> Hi all,
>> 
>> Test java/lang/ProcessBuilder/PipelineLeaksFD.java intermittent timed out, because `lsof` invoke huast lots of time when the tested machine has many processes, and the processes open too many files.
>> 
>> This PR add parameter -p pid to `lsof`, which will only generate output from the wanted processes, rather than all the processes on the machine, this will make `lsof` use less time to finish significantly. And this PR also use `Process.waitFor(long timeout, TimeUnit unit)` instead of `waitFor()` which will avoid waitFor invoke cause test timed out. Delete the history lsof input and output files will make diagnosis more easy.
>> 
>> Change has been verifed locally. The imtermittent timed out do not observed anymore.
>
> SendaoYan has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Remove retry on destroyForcibly

Looks fine; thanks for the updates.

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Marked as reviewed by rriggs (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/29478#pullrequestreview-3747265316