On Thu, 13 Nov 2025 05:22:40 GMT, Prasanta Sadhukhan <[email protected]> 
wrote:

>> `JTree.updateUI` calculate item sizes from the cell renderer, but it doesn't 
>> call `updateUI `on the cell renderer until afterwards. This leads to 
>> incorrect size calculation, which is observed when we switch from one L&F to 
>> another where it is seen that all tree items are slightly too cramped, with 
>> too little space between rows and text are abbreviated.
>> Fix is to ensure `JTree.updateUI` update the cell renderer before updating 
>> the UI. 
>> CI testing is ok..
>> 
>> Before fix
>> <img width="142" height="146" alt="image" 
>> src="https://github.com/user-attachments/assets/95d43e47-122a-4ca4-8a3f-f4bf5c1d3f43";
>>  />
>> 
>> After fix
>> <img width="145" height="125" alt="image" 
>> src="https://github.com/user-attachments/assets/068b5988-119c-4b99-be27-1ef5d52a28a2";
>>  />
>
> Prasanta Sadhukhan has updated the pull request incrementally with one 
> additional commit since the last revision:
> 
>   Test formatting

Marked as reviewed by dnguyen (Committer).

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

PR Review: https://git.openjdk.org/jdk/pull/28258#pullrequestreview-3536885139

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