The portuguese language labels (bluej/lib/portuguese/labels) for inheritance arrows are the wrong way around. When clicking on the inheritance (arrow) button, it prompts to select the superclass first and then the subclass, which is the wrong way around.
pkgmgr.chooseInhFrom=Selecione a superclasse
pkgmgr.chooseInhTo=Selecione a subclasse
Compare to English:
pkgmgr.chooseInhFrom=Select subclass (child class) of extends
pkgmgr.chooseInhTo=Select superclass/interface to extend