On Tue, 8 Jul 2025 06:22:28 GMT, Prasanta Sadhukhan <[email protected]>
wrote:
>> When trying to call 'icon.setImage(null);' where 'icon' is an instance of
>> ImageIcon, a null pointer exception is thrown at runtime.
>> The code tried to get the `id` for that image and instantiates
>> `MediaTracker` to associate the null image to that `id` and checks the
>> status of loading this null image, removes the null image from the tracker
>> and then tries to get the image width where it throws NPE as image is null.
>>
>> It's better to not go through all MediaTracker usage and bail out initially
>> itself for null image..
>
> Prasanta Sadhukhan has updated the pull request incrementally with one
> additional commit since the last revision:
>
> constructor test removal
Marked as reviewed by aivanov (Reviewer).
test/jdk/javax/swing/ImageIcon/ImageIconNullImageTest.java line 34:
> 32: import javax.swing.ImageIcon;
> 33:
> 34: public class ImageIconNullImageTest {
I guess we're going to update the test later with follow-up fixes…
However, I suggest dropping `ImageIcon-` from the test class name — the test is
in `ImageIcon` folder, therefore it tests `ImageIcon`.
-------------
PR Review: https://git.openjdk.org/jdk/pull/25767#pullrequestreview-2997530641
PR Review Comment: https://git.openjdk.org/jdk/pull/25767#discussion_r2192450089
