RFR: 8307325: Verify the focus owner when non focused windows requesting focus

[lawrence.andrews]

On Thu, 4 May 2023 05:41:43 GMT, Ravi Gupta <duke at openjdk.org> wrote:

> Write a test Check, when the top level Window is not the focused Window requesting for focus and becoming the Focus Owner for any Component in that Window checking the following
> 
> 1.The Component is the Focus Owner and the Window becomes the focused Window If the platform supports cross requesting focus
> across Windows.
> 2.The request is remembered and  be granted when the Window is later focused If the platform does not support requesting focus
> across Windows.
> 
> Testing:
> Tested using Mach5(20 times per platform) in macos,linux and windows and got all pass.

test/jdk/java/awt/Focus/CrossFocusRequestTest/CrossFocusRequestTest.java line 52:

> 50:     private volatile static Button button;
> 51:     private volatile static TextField textField;
> 52:     private volatile static int waitTimeout = 1000;

Add final keyword since value does not change

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

PR Review Comment: https://git.openjdk.org/jdk/pull/13790#discussion_r1191271215