RFR: 8305157: The java.util.Arrays class should be declared final

[Roger Riggs]

On Wed, 29 Mar 2023 08:13:06 GMT, Per Minborg <pminborg at openjdk.org> wrote:

> Non-instantiable utility classes should be declared `final` and have a private constructors. 
> 
> See Effective Java, Third Edition, Joshua Bloch (for example, Item 19 or Item 22).

The CSR implies that java.util.Arrays has a non-private constructor but it does.
The CSR should mention that the constructor is private and the Array cannot be subclassed as part of the compatibility comments.

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PR Comment: https://git.openjdk.org/jdk/pull/13221#issuecomment-1488909617