code: @Deprecated
      public static void configure (TextBoxBase target, String defaultText)
      {
          DefaultTextListener listener = new DefaultTextListener(target, defaultText);
          target.addFocusHandler(listener);
          target.addBlurHandler(listener);
      }
docs: Configures the target text box to display the supplied default text when it does not have
  focus and to clear it out when the user selects it to enter text.
  @deprecated use Widgets.setPlaceholderText(TextBoxBase, String)