RFR: 8368683: [process] Increase jtreg debug output maxOutputSize for TreeTest

[Roger Riggs]

On Thu, 25 Sep 2025 20:28:31 GMT, Roger Riggs <rriggs at openjdk.org> wrote:

> TreeTest failure is intermittent, getting the complete output may help with the diagnosis.
> 
> Add maxOutputSize for ProcessHandle TEST.properties for the directory of ProcessHandle tests.

fyi, the push of the bump failed, so maxOutputSize is still 6_000_000.
That should be enough to help diagnose the problem, so I'll wait to raise it until there missing information.

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PR Comment: https://git.openjdk.org/jdk/pull/27501#issuecomment-3338973252