<Swing Dev> RFR: 8263472: Specification of JComponent::updateUI doesn't mention that the original implementaiton does nothing [v2]

[Sergey Bylokhov]

On Mon, 15 Mar 2021 18:06:57 GMT, Alexey Ivanov <aivanov at openjdk.org> wrote:

>> src/java.desktop/share/classes/javax/swing/JComponent.java line 660:
>> 
>>> 658:     /**
>>> 659:      * Resets the UI property to a value from the current look and feel.
>>> 660:      * Since the default implementation of this method doesn't do anything,
>> 
>> The reason why this method should be overridden is that the subclasses only can implement it properly, and it is not because the current method is empty.
>> 
>> Probably we can move the new text to the @implnote tag?
>
> Yet specifying that this method is empty implies overridden methods do not need to call `super.updateUI()`.

But probably it might be changed in the future? If for example, we will move some common functionality from the standard subclasses to this method.

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PR: https://git.openjdk.java.net/jdk/pull/2955