How to use

remove

method

in

org.geoserver.web.GeoServerBasePage

/**
 * The base page is built with an empty panel in the page-header section that can be filled by
 * subclasses calling this method
 *
 * @param component The component to be placed at the bottom of the page-header section. The
 *     component must have "page-header" id
 */
protected void setHeaderPanel(Component component) {
  if (!HEADER_PANEL.equals(component.getId()))
    throw new IllegalArgumentException(
        "The header panel component must have 'headerPanel' id");
  remove(HEADER_PANEL);
  add(component);
}

/**
 * The base page is built with an empty panel in the page-header section that can be filled by
 * subclasses calling this method
 * 
 * @param component
 *            The component to be placed at the bottom of the page-header section. The component
 *            must have "page-header" id
 */
protected void setHeaderPanel(Component component) {
  if (!HEADER_PANEL.equals(component.getId()))
    throw new IllegalArgumentException(
        "The header panel component must have 'headerPanel' id");
  remove(HEADER_PANEL);
  add(component);
}