RFR: 8346107: Generators: testing utility for random value generation

[theoweidmannoracle]

On Wed, 18 Dec 2024 10:29:38 GMT, Emanuel Peter <epeter at openjdk.org> wrote:

>> test/hotspot/jtreg/compiler/lib/generators/SpecialDoubleGenerator.java line 32:
>> 
>>> 30:  * Provide a double distribution picked from a list of special values, including NaN, zero, int, etc.
>>> 31:  */
>>> 32: public final class SpecialDoubleGenerator extends DoubleGenerator {
>> 
>> Same as for MixedLong/IntGenerator: Special*Generator could share common logic in a superclass if Double/FloatGenerator are interfaces.
>
> Again: I'm not sure if doing this with more complicated and more generic code is really easier than a bit of code duplication. Not that I'm in general an advocate for code duplication 🙈 😅

What I'm thinking of doesn't involve any generics. I'm talking about specialMinFrequency, specialMaxFrequency, specialCountDown and the logic in next* to decide whether to provide a special value or not now. This is independent from whether float or double is used, as far as I can tell.

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PR Review Comment: https://git.openjdk.org/jdk/pull/22716#discussion_r1890107018