On Wed, 5 Feb 2025 07:39:52 GMT, Prasanta Sadhukhan <psadhuk...@openjdk.org> 
wrote:

>> Redo for JComboBox infinite scrolling issue. The issue is that when a 
>> scrollbar is clicked and held, if the user switches focus (ex: ALT+TAB) 
>> while scrolling, when focused is returned to the scrolling application, the 
>> JComboBox will still be scrolling even though nothing it being clicked.
>> 
>> Previously, a KeyboardFocusListener was added to determine the focus. 
>> However, there was a memory leak on Windows and Ubuntu. This current 
>> implementation uses the current FocusManager and is overall a cleaner, 
>> simpler approach.
>
> src/java.desktop/share/classes/javax/swing/plaf/basic/BasicScrollBarUI.java 
> line 1625:
> 
>> 1623:                     scrollbar.setValueIsAdjusting(false);
>> 1624:                     return;
>> 1625:                 }
> 
> Can't it be merged with below frame disable logic as it does the same thing?

I initially separated it to make it clear that this is for focus. I'll edit 
this and modify the existing comment to include null focus.

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PR Review Comment: https://git.openjdk.org/jdk/pull/23451#discussion_r1945128597

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