@Override
  public boolean removeValue(Object value) {
    int idx = indexOf(value);
    if (idx == -1) {
      return false;
    }
    remove(idx);
    return true;
  }
@ Override public boolean removeValue ( Object value ) { int idx = indexOf ( value ) ; if ( idx == - 1 ) { return false ; } remove ( idx ) ; return true ; }
@formatter:on