if( choices == null ) return null;  Choice[] retChoices = new Choice[choices.size( )];
if ( choices == null ) return null;  IChoice[] retChoices = new IChoice[choices.size( )];
	public IChoice[] getChoices( )	{        if( choices == null )            return null;        		Choice[] retChoices = new Choice[choices.size( )];		choices.toArray( retChoices );		return retChoices;	}