RFR: 8324239: JFXPanelHiDPITest fails on Windows 11 [v3]

[Kevin Rushforth]

On Mon, 22 Jan 2024 09:56:01 GMT, Prasanta Sadhukhan <psadhukhan at openjdk.org> wrote:

>> Test fails with
>> 
>> JFXPanelHiDPITest > testScale FAILED
>>     java.lang.NullPointerException: Cannot invoke "java.awt.image.BufferedImage.getWidth()" because "pixelsIm" is null 
>> 
>> because scenePeer is not yet created as the test is run with invokeLater.
>> FIx is to make it run with invokeAndWait so that it waits for the scene to be created..
>
> Prasanta Sadhukhan has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Use Platform.runAndWait

The test runs correctly now. Tests should generally use `Util.runAndWait` instead of `PlatformImpl.runAndWait`.

tests/system/src/test/java/test/robot/javafx/embed/swing/JFXPanelHiDPITest.java line 154:

> 152: 
> 153:         private void createScene(final JFXPanel fxPanel) {
> 154:             PlatformImpl.runAndWait(() -> {

Generally we prefer `test.util.Util::runAndWait` so that exceptions are propagated.

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PR Review: https://git.openjdk.org/jfx/pull/1344#pullrequestreview-1837336899
PR Review Comment: https://git.openjdk.org/jfx/pull/1344#discussion_r1462401494