RFR: 8282936: Write a regression test for JDK-4615365 [v2]

[Sergey Bylokhov]

On Tue, 22 Mar 2022 06:29:16 GMT, Manukumar V S <mvs at openjdk.org> wrote:

>> Write a regression test for [JDK-4615365](https://bugs.openjdk.java.net/browse/JDK-4615365) : JSplitPane current and last divider positions incorrect when realized
>> 
>> Issue:
>> JSplitPane component with a left and right component has its current divider
>> position incorrectly set to -1 once it is fully realized. For JDK 1.3.1, its
>> value is set to 0. The current position of the divider should be the current
>> position of the divider once layout management is complete. If the divider is
>> moved one pixel, the current divider position is updated to the correct value
>> but the last divider position is then set to -1 (i.e. the last value of the
>> current divider position). If the divider is moved again, everything is OK.
>> 
>> Testing:
>> Java 1.4.0 -> Test Failed.
>> $ j2sdk1.4.0/bin/java bug4615365
>> current= -1, last= 0
>> Test Failed.
>> 
>> Java 1.4.1 -> Test Passed.
>> $ j2sdk1.4.1/bin/java bug4615365
>> current= 97, last= -1
>> Test Passed.
>
> Manukumar V S has updated the pull request incrementally with two additional commits since the last revision:
> 
>  - Removed extra blank line before import static
>  - Review comment fixed: Limited 80 chars per line

Marked as reviewed by serb (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/7802