docs: private static void populateCache() {
          if (cache == null) {
              cache = new LinkedHashMap<>();
  
              logger.info("IDataDecoders found:");
  
              ServiceLoader<IDataDecoder> loader =
                      ServiceLoader.load(IDataDecoder.class);
  
              // Logging.
              for (IDataDecoder discoveredDecoder : loader) {
                  String name = discoveredDecoder.getClass().getCanonicalName();
                  String decoderMimeType = discoveredDecoder.getMimeType();
                  logger.info(String.format("    %s -> %s",
                          decoderMimeType, name));
                  cache.put(decoderMimeType, discoveredDecoder.getClass());
              }
          }
      }