RFR: 8342098: Write a test to compare the images [v8]

[duke]

On Wed, 13 Nov 2024 09:48:14 GMT, Naveen Narayanan <duke at openjdk.org> wrote:

>> This testcase checks for the following:
>> 
>> 1. An image is drawn on the screen and a portion of it is captured using a Robot. It is tested by comparing whether the captured image is same as the source image. 
>> 
>> Testing:
>> Tested using Mach5(20 times per platform) in MacOS, Linux and Windows. Seen all tests passing.
>
> Naveen Narayanan has updated the pull request incrementally with one additional commit since the last revision:
> 
>   8342098: Updated review comments

@Naveenam-Oracle 
Your change (at version a85816af8da95d03440ee3311066f253af80cfe9) is now ready to be sponsored by a Committer.

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PR Comment: https://git.openjdk.org/jdk/pull/21524#issuecomment-2486003608