RFR: 8248862: Implement Enhanced Pseudo-Random Number Generators [v42]

stefan-zobel github.com+18482851+stefan-zobel at openjdk.java.net
Tue Sep 14 19:01:29 UTC 2021


On Mon, 5 Apr 2021 14:20:56 GMT, Jim Laskey <jlaskey at openjdk.org> wrote:

>> This PR is to introduce a new random number API for the JDK. The primary API is found in RandomGenerator and RandomGeneratorFactory. Further description can be found in the JEP https://openjdk.java.net/jeps/356 .
>> 
>> javadoc can be found at http://cr.openjdk.java.net/~jlaskey/prng/doc/api/java.base/java/util/random/package-summary.html
>> 
>> old PR:  https://github.com/openjdk/jdk/pull/1273
>
> Jim Laskey has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 78 commits:
> 
>  - Merge branch 'master' into 8248862
>  - Fix NotCompliantCauseTest to not rely on Random not being a bean
>  - Merge branch 'master' into 8248862
>  - Correct return type of RandomGeneratorFactory.of
>  - Merge branch 'master' into 8248862
>  - CSR review revisions
>  - CSR review updates
>  - Removed @since from nextDouble ThreadLocalRandom
>  - RandomGeneratorFactory::all(Class<T> category) @implNote was out of date
>  - Clarify all()
>  - ... and 68 more: https://git.openjdk.java.net/jdk/compare/a8005efd...ffd982b0

The package javadoc of java.util.random says that `mixLea32` is used as a mixing function in the L64 and L128 generators which doesn't seem to be correct. That should probably read `mixLea64`

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PR: https://git.openjdk.java.net/jdk/pull/1292


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