RFR: 8302525: Write a test to check various components send Events while mouse and key are used simultaneously [v2]

[Ravi Gupta]

> Main aim of this testcase is to test the behavior of various events under stress.
> 
> This testcase verifies the following assertions
> a. This TestCase performs various mouse and key operations on components and checks whether all the events are getting triggered properly.
> b. It also checks some of the component specific events like item, action wherever necessary.
> 
> Testing:
> Tested using Mach5(20 times per platform) in macos,linux and windows and got all pass.

Ravi Gupta has updated the pull request incrementally with one additional commit since the last revision:

  8302525: Review Fixes

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/12571/files
  - new: https://git.openjdk.org/jdk/pull/12571/files/07fb520a..170d90ed

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=12571&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=12571&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/12571.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/12571/head:pull/12571

PR: https://git.openjdk.org/jdk/pull/12571