On Wed, 18 Jun 2025 03:41:32 GMT, Prasanta Sadhukhan <psadhuk...@openjdk.org> 
wrote:

>> Note that "ImageIcon(URL location)" will throw npe as well, do we want to 
>> ignore it or specify NPE? That is actually interesting question since 
>> initially some of methods throw NPE and another ignore the image.
>
> ImageIcon(URL) will call ImageIcon(URL, String) where already image null 
> check was there so I guess it will not throw NPE before fix too..

Indeed, it throws `NullPointerException`:


jshell> import javax.swing.ImageIcon;

jshell> import java.net.URL;

jshell> new ImageIcon((URL) null);
|  Exception java.lang.NullPointerException: Cannot invoke 
"java.net.URL.toExternalForm()" because "location" is null
|        at ImageIcon.<init> (ImageIcon.java:234)
|        at (#3:1)


https://github.com/openjdk/jdk/blob/984d7f9cdfb0d75ea906ce32df0b6c447f4d5954/src/java.desktop/share/classes/javax/swing/ImageIcon.java#L202-L204

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

PR Review Comment: https://git.openjdk.org/jdk/pull/25767#discussion_r2155041323

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