import com.vaadin.ui.CustomComponent;
import com.vaadin.ui.CustomLayout;
import com.vaadin.ui.Label;
-import com.vaadin.ui.LabelDataSource;
import com.vaadin.ui.LegacyWindow;
import com.vaadin.ui.LoginForm;
import com.vaadin.ui.PopupView;
if (cls == LoginForm.class || cls == CustomLayout.class
|| CustomComponent.class.isAssignableFrom(cls)
|| cls == PopupView.class || cls == Window.class
- || cls == UI.class || cls == LegacyWindow.class
- || cls == LabelDataSource.MockUI.class) {
+ || cls == UI.class || cls == LegacyWindow.class) {
// Does not support addComponent
continue;
}