}
  public void handleRemovedRequisitions(Collection tasks) {    LogisticsInventoryPG thePG;    Task aTask;    Iterator taskIter = tasks.iterator();    while (taskIter.hasNext()) {      aTask = (Task)taskIter.next();      thePG = getLogisticsInventoryPG(aTask);      if (thePG != null) {	thePG.removeWithdrawRequisition(aTask);      }    }  }