#fixed code
                                public ChampionList getDataChampionList(Region region) throws RiotApiException {

        return StaticDataMethod.getDataChampionList(region.getName(), getKey(), null, null, false, (ChampData) null);
    }
#vulnerable code 
                                public ChampionList getDataChampionList(Region region) throws RiotApiException {

        return StaticDataMethod.getDataChampionList(region.getName(), getKey(), null, null, false, null);
    } 
                            #location 3 
                            #vulnerability type NULL_DEREFERENCE