<Swing Dev> [9] Review Request: 4339584 Adding a getUI public method to JComponent

[Sergey Bylokhov]

On 21.08.15 14:20, Alexander Scherbatiy wrote:
> On 8/21/2015 1:49 PM, Sergey Bylokhov wrote:
>> I just double checked that if I compiles the subclass when the parent 
>> class has not this method, then recompiles a new parent, the correct 
>> method in subclass still called, so it seems fine. Probably there are 
>> some other cases, which will be checked during ccc review.
>
Yes this case will be broken, since this getter contradicts the 
specification described in JComponent.setUI.

>     I mean the following case:
>     -------------------------------
>     public class CustomComponent extends JComponent {
>
>         class CustomComponentUI {}
>
>         CustomComponentUI getUI() {
>             return null;
>         }
>     }
>     -------------------------------
>
>   Thanks,
>   Alexandr.
>
>>
>>
>>> Could it break a binary compatibility if someone does not follow the 
>>> javadoc specification and has in his program getUI() method which 
>>> return type is not subclass of the ComponentUI?
>>>
>>>   Thanks,
>>>   Alexandr.
>>>
>>>>
>>>> Bug: https://bugs.openjdk.java.net/browse/JDK-4339584
>>>> Webrev can be found at: 
>>>> http://cr.openjdk.java.net/~serb/4339584/webrev.00
>>>>
>>>
>>
>>
>


-- 
Best regards, Sergey.