RFR: 8294137: Review running times of java.math tests [v3]

[Joe Darcy]

On Fri, 17 Mar 2023 15:18:07 GMT, Brian Burkhalter <bpb at openjdk.org> wrote:

>> Break up `BigIntegerTest` and `SymmetricRangeTests` into subsets which are run quasi-randomly as a function of second within the minute at the time the test is running. `LargeValueExceptions` does not appear amenable to this treatment.
>
> Brian Burkhalter has updated the pull request incrementally with one additional commit since the last revision:
> 
>   8303269: Add a means to run all subtests if desired

Looks okay -- if in the future there is a more general mechanism to support this kind of sub-setting the test should be transitioned to use that.

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Marked as reviewed by darcy (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/12819#pullrequestreview-1355207115