code: public static void generate(ConfigurationImpl configuration, ModuleElement mdle) throws DocFileIOException {
          DocPath filename = DocPaths.moduleFrame(mdle);
          ModulePackageIndexFrameWriter modpackgen = new ModulePackageIndexFrameWriter(configuration, filename);
          modpackgen.buildModulePackagesIndexFile("doclet.Window_Overview", false, mdle);
      }
docs: Generate the module package index file.
  @throws DocFileIOException
  @param configuration the configuration object
  @param mdle the module being documented