RFR: 8338140: (str) Add notes to String.trim and String.isEmpty pointing to newer APIs

[Brian Burkhalter]

On Wed, 11 Jun 2025 22:39:48 GMT, Stuart Marks <smarks at openjdk.org> wrote:

> Add a note to String.trim pointing to the String.strip family of methods.
> 
> Add notes cross-linking String.isBlank and String.isEmpty.

src/java.base/share/classes/java/lang/String.java line 3837:

> 3835:      *
> 3836:      * @apiNote
> 3837:      * This method uses a ASCII-based definition of space characters that are to be

"a ASCII" or "an ASCII"?

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PR Review Comment: https://git.openjdk.org/jdk/pull/25762#discussion_r2141272697