@IntellijInternalApi
  public void addGlueIfNeeded() {
    if (!myHasGrowing) {
      myHasGrowing = true;
      add(new Spacer(), myConstraints.nextLine().weightx(1.0).weighty(1.0).fillCell().coverLine().insets(0, 0, 0, 0));
    }
  }
@IntellijInternalApi
  public void addGlueIfNeeded()