return displayName;
return displayName.toString();
  public static String proxyPrivilegeDisplayName(Signet signet, Proxy proxy)  {    String displayName = "Proxy";        if (proxy.getGrantor().equals(signet.getSignetSubject()))    {      if (proxy.getSubsystem() == null)      {        displayName = "System Administrator";      }      else      {        displayName = "Subsystem Owner";      }    }        return displayName;  }