@Override
    public void dispose() {
    }
Return the width of the given character including kerning information.
@param currentCharacter current character
@param nextCharacter next character
@param size font size
@return width of the character or null when no information for the character is available
jme3-niftygui/src/main/java/com/jme3/niftygui/RenderFontJme.java