#vulnerable code 
                                public void setAttributes(Map<Attribute, Object> attributes) throws IOException {
        for (Attribute attribute : attributes.keySet()) {
            String name = null;
            Object value = attributes.get(attribute);
            switch (attribute) {    
                case Uid:              name = "unix:uid"; break;
                case Owner:            name = "unix:owner"; value = toUser((String) value); break;
                case Gid:              name = "unix:gid"; break;
                case Group:            name = "unix:group"; value = toGroup((String) value); break;
                case CreationTime:     name = "unix:creationTime"; value = FileTime.fromMillis((Long) value); break;
                case LastModifiedTime: name = "unix:lastModifiedTime"; value = FileTime.fromMillis((Long) value); break;
                case LastAccessTime:   name = "unix:lastAccessTime"; value = FileTime.fromMillis((Long) value); break;
                case Permissions:      name = "unix:permissions"; value = toPerms((EnumSet<Permission>) value); break;
            }
            if (name != null && value != null) {
                Files.setAttribute(file.toPath(), name, value, LinkOption.NOFOLLOW_LINKS);
            }
        }
    } 
                            #location 10 
                            #vulnerability type NULL_DEREFERENCE
#fixed code
                                public void setAttributes(Map<Attribute, Object> attributes) throws IOException {
        if (!attributes.isEmpty()) {
            throw new UnsupportedOperationException();
        }
    }