public static @NotNull Set<PosixFilePermission> fromUnixMode(int mode) {
    Set<PosixFilePermission> permissions = EnumSet.noneOf(PosixFilePermission.class);
    if ((mode & S_IRUSR) != 0) permissions.add(PosixFilePermission.OWNER_READ);
    if ((mode & S_IWUSR) != 0) permissions.add(PosixFilePermission.OWNER_WRITE);
    if ((mode & S_IXUSR) != 0) permissions.add(PosixFilePermission.OWNER_EXECUTE);
    if ((mode & S_IRGRP) != 0) permissions.add(PosixFilePermission.GROUP_READ);
    if ((mode & S_IWGRP) != 0) permissions.add(PosixFilePermission.GROUP_WRITE);
    if ((mode & S_IXGRP) != 0) permissions.add(PosixFilePermission.GROUP_EXECUTE);
    if ((mode & S_IROTH) != 0) permissions.add(PosixFilePermission.OTHERS_READ);
    if ((mode & S_IWOTH) != 0) permissions.add(PosixFilePermission.OTHERS_WRITE);
    if ((mode & S_IXOTH) != 0) permissions.add(PosixFilePermission.OTHERS_EXECUTE);
    return permissions;
  }
public static @NotNull Set<PosixFilePermission> fromUnixMode(int mode)