code: public void updateModuleFromDefault(String importFile) throws Exception {
  
          String exportPath = OpenCms.getSystemInfo().getPackagesRfsPath();
          String fileName = OpenCms.getSystemInfo().getAbsoluteRfsPathRelativeToWebInf(
              exportPath + CmsSystemInfo.FOLDER_MODULES + importFile);
          updateModule(fileName);
      }
docs: Updates a module with another revision in case their module versions differ.<p>
  
  @param importFile the name of the import file
  
  @throws Exception if something goes wrong