RFR: 7903961: Make default timeout configurable [v2]

[Jaikiran Pai]

On Thu, 3 Apr 2025 18:48:16 GMT, Christian Stein <cstein at openjdk.org> wrote:

>> Please review this change replacing the hard-coded `120` seconds default timeout for test actions with a configurable solution parsing a custom default value from `TEST.ROOT` and `TEST.properties` files:
>> 
>> 
>> timeout.default.seconds=360
>> 
>> 
>> Especially in combination with "JUnit.dirs" and "TestNG.dirs", where all actions directives found in a test file are ignored, is helpful.
>
> Christian Stein has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Simplify implementation, don't expose default timeout value

These changes look OK to me.

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Marked as reviewed by jpai (Reviewer).

PR Review: https://git.openjdk.org/jtreg/pull/253#pullrequestreview-2741897932