RFR: 8293862: javax/swing/JFileChooser/8046391/bug8046391.java failed with 'Cannot invoke "java.awt.Image.getWidth(java.awt.image.ImageObserver)" because "retVal" is null'

[Prasanta Sadhukhan]

On Fri, 11 Nov 2022 08:18:19 GMT, Tejesh R <tr at openjdk.org> wrote:

> Observation found when JFileChooser is instantiated in WindowsLookAndFeel which invokes getSystemIcon() from WindowsFileChooserUI class. Could not find the exact root cause so predicting it to be an issue with icons not loaded where resolutionVariants map is empty in _public Image getResolutionVariant(double width, double height) _. Hence proposing a null check before accessing getWidth(). Fix is tested in CI system.

Do we need to wait a bit longer after creating JFileChooser as the test immediately ends after instantiating it?
Also, doesn't JFileChooser needs headful keyword as it needs to show a file dialog? Does it work more reliably if its to run in headful CI systems?

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PR: https://git.openjdk.org/jdk/pull/11104