RFR: 8282857: Create a regression test for JDK-4702690 [v3]

[Srinivas Mandalika]

On Wed, 6 Apr 2022 07:02:25 GMT, Srinivas Mandalika <smandalika at openjdk.org> wrote:

>> Create a regression test for [JDK-4702690](https://bugs.openjdk.java.net/browse/JDK-4702690)
>> 
>> In many cases in Swing it is possible to easily programatically determine that a JScrollBar (or two) is scrolling some JPanel (the cannonical case is a JScrollPane).
>> In these cases, when accessibility support is instantiated (e.g. the AccessibleJScrollBar is created), a Controller_For and Controled_By relation should be instantiated between the AccessibleJScrollBar and the AccessibleJPanel that the JScrollBar and JPanel are associated with.
>> 
>> This allows various assistive technologies, especially voice-recognition technologies, to better interact with scrolling items.
>> 
>> The test put up validates that the target object for these properties(CONTROLLED_BY, CONTROLLED_FOR) are set appropriately for JScrollPane and JScrollBar.
>> This review is for migrating tests from a closed test suite to open.
>
> Srinivas Mandalika has updated the pull request incrementally with two additional commits since the last revision:
> 
>  - Review Comments Fixed: Swing Components on EDT, 80 chars lines
>  - Review Comments Fixed: Swing Components on EDT, 80 chars lines

@mrserb  can you please review the changes after incorporating the earlier feedback ?

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PR: https://git.openjdk.java.net/jdk/pull/7753