RFR: 8291760: PipelineLeaksFD.java still fails: More or fewer pipes than expected [v4]

[Alan Bateman]

On Thu, 18 Aug 2022 19:29:05 GMT, Roger Riggs <rriggs at openjdk.org> wrote:

>> Revised test to check and close all of the streams used in the pipeline.
>> 
>> The test now checks the content length and closes each stdout and stderr stream.
>> 
>> The previous technique to redirect stderr to stdout was ineffective because the fd/stream was still created in the parent process.  Created [8291986](https://bugs.openjdk.org/browse/JDK-8291986) ProcessBuilder.redirectErrorStream(true) leaves error stream available to investigate
>
> Roger Riggs has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains four commits:
> 
>  - Merge branch 'master' into 8291760-leaks-close
>  - Revised test to read, check, and close streams from all processes in the pipeline.
>    If any unexpected output is found it is printed.
>  - Merge branch 'master' into 8291760-leaks-close
>  - 8291760: PipelineLeaksFD.java still fails: More or fewer pipes than expected
>    Check the contents and close each stdout and stderr stream.

Marked as reviewed by alanb (Reviewer).

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PR: https://git.openjdk.org/jdk/pull/9905