Vaadin 7 Group Box Control

Im seeing that Form has been deprecated in Vaadin 7. How can I create a GroupBox in version 7 that will be supported going forward? I’ve read this

https://vaadin.com/old-forum/-/message_boards/view_message/1212083
https://vaadin.com/forum#!/thread/1212084

But I’m concerned its dependent on Forms that are deprecated in v7.