code: public static void generate(ConfigurationImpl configuration,
                                  IndexBuilder indexbuilder) throws DocFileIOException {
          DocPath filename = DocPaths.INDEX_ALL;
          SingleIndexWriter indexgen = new SingleIndexWriter(configuration,
                                           filename, indexbuilder);
          indexgen.generateIndexFile();
      }
docs: Generate single index file, for all Unicode characters.
  
  @param configuration the configuration for this doclet
  @param indexbuilder IndexBuilder built by {@link IndexBuilder}
  @throws DocFileIOException if there is a problem generating the index