oos.writeObject(getAllObjects(psc));
oos.writeObject(ret);
  public void execute(PrintStream out,		      HttpInput query_parameters,		      PlanServiceContext psc,		      PlanServiceUtilities psu) throws Exception {    try {      parseFilter(query_parameters, psc);      ObjectOutputStream oos = new ObjectOutputStream(out);      oos.writeObject(getAllObjects(psc));    } catch (Exception e) {      System.out.println("PSP_Plan Exception: " + e);      e.printStackTrace();    }  }