RFR: 8282819: Deprecate Locale class constructors [v3]

[Naoto Sato]

On Mon, 28 Mar 2022 21:06:35 GMT, Roger Riggs <rriggs at openjdk.org> wrote:

>> While it is true for completeness, I would limit the addition of new method as little as possible, because there are already several ways to obtain a Locale object.
>
> As with other varargs method calls, it is possible to pass an array with the values.
> I think it would be useful to describe the arguments as using the varargs nomenclature and indicate
> the values are in the array.  For example, the `java.util.List.of(E... elements)` method is explicit 
> about the array. Anther API using varargs EnumSet.

Added the explanation following the `List.of(E... elements)` javadoc.

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PR: https://git.openjdk.java.net/jdk/pull/7947