code: @Override
      public void executeListMultiActions() {
  
          if (getParamListAction().equals(LIST_MACTION_DELETE)) {
              String moduleName = getParamModule();
              // execute the delete multiaction
              Iterator itItems = getSelectedItems().iterator();
  
              while (itItems.hasNext()) {
                  CmsModule module = (CmsModule)OpenCms.getModuleManager().getModule(moduleName).clone();
                  CmsListItem listItem = (CmsListItem)itItems.next();
                  String exportpointName = listItem.getId();
                  deleteExportpoint(module, exportpointName);
              }
          }
          // refresh the list
          Map objects = (Map)getSettings().getListObject();
          if (objects != null) {
              objects.remove(CmsModulesList.class.getName());
          }
          listSave();
  
      }
docs: This method should handle every defined list multi action,
  by comparing <code>{@link #getParamListAction()}</code> with the id
  of the action to execute.<p>