RFR: 4750574: (se spec) Selector spec should clarify calculation of select return value

[Brian Burkhalter]

On Wed, 26 Jan 2022 10:20:29 GMT, Alan Bateman <alanb at openjdk.org> wrote:

>> Improve the description of the return value of each of the `Selector.select()` methods which do not accept an action parameter.
>
> It requires careful reading but is accurate, so I think this is okay (esp. as this is an API for advanced users, not an API that most users would use directly).

@AlanBateman What do you think of @dfuch's API note suggestion?

-------------

PR: https://git.openjdk.java.net/jdk/pull/7220