code: public static void generate(ConfigurationImpl configuration) throws DocFileIOException {
          FrameOutputWriter framegen = new FrameOutputWriter(configuration, DocPaths.INDEX);
          framegen.generateFrameFile();
      }
docs: Construct FrameOutputWriter object and then use it to generate the Html
  file which will have the description of all the frames in the
  documentation. The name of the generated file is "index.html" which is
  the default first file for Html documents.
  @param configuration the configuration for this doclet
  @throws DocFileIOException if there is a problem generating the frame file