RFR: 8282937: Write a regression test for JDK-4820080

[Sergey Bylokhov]

On Sun, 13 Mar 2022 14:07:22 GMT, Manukumar V S <mvs at openjdk.org> wrote:

> Write a regression test for [JDK-4820080](https://bugs.openjdk.java.net/browse/JDK-4820080) : RFE: Cannot Change the JSplitPane Divider Color while dragging
> 
> Issue(as per bug description):
> I want to change the color of the JSplitPane divider. I
> opened the code and found that, the color is hard coded to
> darkGray while one is dragging the splitDivider. I have an
> application where the components on SplitPane have black
> background, So when i drag I can not see the split getting
> dragged. Can some one fix this, by externelising the
> SplitDivider color so that it can be changed at run time.
> 
> Testing:
> Java 1.4.1 -> Test Failed.
> $ ./j2sdk1.4.1/bin/java JSplitPaneDragColorTest
> Metal uses correct drag color false
> CDE/Motif uses correct drag color false
> Windows uses correct drag color false
> Test Failed.
> 
> Java 1.5.0 -> Test Failed.
> $ ./jdk1.5.0/bin/java JSplitPaneDragColorTest
> Metal uses correct drag color true
> Windows uses correct drag color true
> Windows Classic uses correct drag color true
> Test Passed.

test/jdk/javax/swing/JSplitPane/4820080/JSplitPaneDragColorTest.java line 71:

> 69:         robot.setAutoWaitForIdle(true);
> 70:         robot.setAutoDelay(200);
> 71:         // Skipping NimbusLookAndFeel & GTKLookAndFeel as both are not supported for this feature - JDK-8075914

Please split the long lines using 80 chars per line.
Note that JDK-8075914 is closed so it is unclear why this is unsupported by Nimbus/GTK l&f.

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PR: https://git.openjdk.java.net/jdk/pull/7803