public void removeAll(final Collection elements){
  adjusting=true;
  Set oldSelection=new HashSet(selection);
  boolean rv=selection.removeAll(elements);
  adjusting=false;
  if (rv) {
    fireSelectionChanged(oldSelection,selection);
  }
}

public void removeAll ( final Collection elements ) { adjusting = true ; Set oldSelection = new HashSet ( selection ) ; boolean rv = selection . removeAll ( elements ) ; adjusting = false ; if ( rv ) { fireSelectionChanged ( oldSelection , selection ) ; } }
remove all of the specified elements from the selection .
