code: @UiHandler("m_checkboxSiblings")
      protected void onSiblingClick(ClickEvent event) {
  
          if (!m_showResources) {
              return;
          }
          m_publishDialog.setIncludeSiblings(m_checkboxSiblings.isChecked());
          m_publishDialog.updateResourceList();
      }
docs: Handles the click event for sibling resources check box.<p>
  
  @param event the click event
  
  @see com.google.gwt.event.dom.client.ClickHandler#onClick(com.google.gwt.event.dom.client.ClickEvent)