(null, signet.getSubsystem(Constants.SUBSYSTEM_ID), null);
((Status)null, signet.getSubsystem(Constants.SUBSYSTEM_ID), null);
  public final void testRevoke()  throws    ObjectNotFoundException,    SignetAuthorityException  {    for (int subjectIndex = 0;         subjectIndex < Constants.MAX_SUBJECTS;         subjectIndex++)    {      Subject subject        = signet.getSubject            (Signet.DEFAULT_SUBJECT_TYPE_ID,             fixtures.makeSubjectId(subjectIndex));            PrivilegedSubject pSubject = signet.getPrivilegedSubject(subject);      Set assignmentsReceived        = pSubject.getAssignmentsReceived            (null, signet.getSubsystem(Constants.SUBSYSTEM_ID), null);      Assignment assignment = (Assignment)(assignmentsReceived.toArray()[0]);            PrivilegedSubject revoker;            if (assignment.getProxy() == null)      {        revoker = assignment.getGrantor();      }      else      {        revoker = assignment.getProxy();        revoker.setActingAs(assignment.getGrantor());      }            assignment.revoke(revoker);      assignment.save();    }  }