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

[Sergey Bylokhov]

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.

JFileChooser uses the FileSystemView API, you can call that directly to make sure that some UI things in JFileChooser do not affect the behavior of the test.

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