RFR: 8368960: Adjust java UL logging in the build [v5]

[Matthias Baesken]

On Tue, 7 Oct 2025 12:39:15 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

>> In the build process, unwanted UL error/warning messages can pollute stdout and influence the build process/results.
>> 
>> An example is the polluted blocked.certs file from https://bugs.openjdk.org/browse/JDK-8357691 .
>
> Matthias Baesken has updated the pull request incrementally with one additional commit since the last revision:
> 
>   David suggested a change to the UL options for more clarity

Thanks for the reviews !

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PR Comment: https://git.openjdk.org/jdk/pull/27588#issuecomment-3380025273