For the component rich:dropDownMenu.
The doc says for the attributes jointPoint / direction :
Possible values are: AA (auto), LT (topLeft), RT (topRight), LB (bottomLeft), RB (bottomRight), LA (autoLeft), RA (autoRight), AT (topAuto), AB (bottomAuto).
But we can't use LT, RT... we must use topRight, bottomRight...
This is confusing.