On Thu, 15 Dec 2022 04:54:47 GMT, Tejesh R <[email protected]> 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.
>
> Tejesh R has updated the pull request incrementally with one additional 
> commit since the last revision:
> 
>   Updated fix

You may still add `assert` statements into `MultiResolutionIconImage` 
constructors which ensures `resolutionVariants` contains no `null` values.

src/java.desktop/windows/classes/sun/awt/shell/Win32ShellFolder2.java line 1444:

> 1442:                 }
> 1443:             }
> 1444:             if ((retVal != null) && (retVal.getWidth(null) != w)) {

I believe this change is not needed.

-------------

Changes requested by aivanov (Reviewer).

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

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