@Override public boolean removeEntry(Principal caller,AclEntry entry) throws NotOwnerException {
  if (!isOwner(caller))   throw new NotOwnerException();
  return (entryList.removeElement(entry));
}

@ Override public boolean removeEntry ( Principal caller , AclEntry entry ) throws NotOwnerException { if ( ! isOwner ( caller ) ) throw new NotOwnerException ( ) ; return ( entryList . removeElement ( entry ) ) ; }
removes an acl entry from this acl .
