RFR: 8150564: Migrate useful ExtendedRobot methods into awt.Robot [v2]

[Damon Nguyen]

On Wed, 27 Aug 2025 19:38:48 GMT, Phil Race <prr at openjdk.org> wrote:

>> src/java.desktop/share/classes/java/awt/Robot.java line 137:
>> 
>>> 135:      * Default pixel step-length for mouse {@link #glide(int, int, int, int) glide}.
>>> 136:      */
>>> 137:     public final int DEFAULT_STEP_LENGTH = 2;
>> 
>> Is there a reason these fields are not static? Non-static final fields like these are constant only in the class and not constant when used by other classes, and require an instance to access, but I don't find these differences convincing as the reason.
>
>> Is there a reason these fields are not static? Non-static final fields like these are constant only in the class and not constant when used by other classes, and require an instance to access, but I don't find these differences convincing as the reason.
> 
> This looks like a mistake. In an earlier version of this change there were also variables to over-ride these for this instance named "stepDelay" and "stepLength" and they were inadvertently marked as static. 
> I said they should be instance variables .. and that seems to have then been applied to the DEFAULT_* variables too which was not the request.

Updated. Will update in the CSR as well. Thanks!

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PR Review Comment: https://git.openjdk.org/jdk/pull/26969#discussion_r2305317763