}

    void clearPermissions() {
      perms = new Permissions();
    }

    @Override
    public PermissionCollection getPermissions(CodeSource cs) {
      return perms;
    }

    @Override
    public PermissionCollection getPermissions(ProtectionDomain pd) {
      return perms;
    }

    @Override
    public boolean implies(ProtectionDomain pd, Permission p) {

        ImmutableList<AclEntry> acl =
            ImmutableList.of(
                AclEntry.newBuilder()
                    .setType(ALLOW)
                    .setPrincipal(user)
                    .setPermissions(EnumSet.allOf(AclEntryPermission.class))
                    .setFlags(DIRECTORY_INHERIT, FILE_INHERIT)
                    .build());
        FileAttribute<ImmutableList<AclEntry>> attribute =