var button = new Button();
button.addThemeVariants(ButtonVariant.LUMO_SMALL);
is deprecated in Vaadin 23.3.0. What is the supposed replacement? The docs still use button.addThemeVariants: https://vaadin.com/docs/latest/components/button
You don’t have to do anything in this case. Looks like there was no overwriting of the method in the button class.
Ping fyi @flexible-kiwi
What IDE are you using?
Eclipse
It’s shown as deprecated because it’s defined in GeneratedVaadinButton<R extends GeneratedVaadinButton<R>> which is annotated as deprecated
Interesting, IDEA does it better 
that method from above is not deprecated don’t worry - only the generated class. The method is going to be moved to the button class
Thanks for the clarification, I’ll add some ignore rules for now
Kind of surprising, but I guess it goes to show that testing deprecation notices only in IDEA is not enough 
.
I’ve opened a PR that should address this: https://github.com/vaadin/flow-components/pull/4391