public @NotNull GridBag setDefaultInsets(int column, @Nullable Insets insets) {
    if (insets == null) {
      myDefaultColumnInsets.remove(column);
    }
    else {
      myDefaultColumnInsets.put(column, insets);
    }
    return this;
  }
public @NotNull GridBag setDefaultInsets(int column, @Nullable Insets insets)