#fixed code
                                public static Permission decodeJSON(JSONObject node) {
        Permission permission = new Permission();
        
        Access access = Access.values()[((Long) node.get("rights")).intValue()];
        if (access.ordinal() == 0) {
            access = Access.PLAYER;
        }

        // The values are stored as longs internally, despite us passing an int
        permission.setName((String) node.get("name"));
        permission.setType(Type.values()[((Long) node.get("type")).intValue()]);
        permission.setAccess(access);

        return permission;
    }
#vulnerable code 
                                public static Permission decodeJSON(JSONObject node) {
        Permission permission = new Permission();

        // The values are stored as longs internally, despite us passing an int
        permission.setName((String) node.get("name"));
        permission.setType(Type.values()[((Long) node.get("type")).intValue()]);
        permission.setAccess(Access.values()[((Long) node.get("rights")).intValue()]);

        return permission;
    } 
                            #location 6 
                            #vulnerability type NULL_DEREFERENCE