When using jribbon inside an application that does not derive from jribbonframe
rendering of application menu throws an exception. This is due lines 119-121 in
BasicRibbonApplicationMenuUI (in those lines it queries JRF for JRibbon).
In my case: I have my jframe and changeable content in it. Impossible to use
ribbon in the way specified (more likely: I'd rather use it my way, it being
inside a panel).
Workarounds tried: expand JRF in my main frame, override getribbon to return
correct ribbon. FAILS DUE: private method initribbon (it adds extra ribbon to