public void removeEntry(RosterEntry e){
  log.debug("Remove entry {}",e);
  _list.remove(e);
  e.removePropertyChangeListener(this);
  setDirty(true);
  firePropertyChange(REMOVE,e,null);
}

public void removeEntry ( RosterEntry e ) { log . debug ( "Remove entry {}" , e ) ; _list . remove ( e ) ; e . removePropertyChangeListener ( this ) ; setDirty ( true ) ; firePropertyChange ( REMOVE , e , null ) ; }
remove a rosterentry object from the in - memory roster . this does not delete the file for the rosterentry !
