docs: private void deletePrefix(final Future<Void> aFuture) {
          if (LOGGER.isDebugEnabled()) {
              LOGGER.debug(MessageCodes.PT_DEBUG_034, myPath);
          }
  
          myFileSystem.delete(getPrefixFilePath(), result -> {
              if (result.succeeded()) {
                  aFuture.complete();
              } else {
                  aFuture.fail(result.cause());
              }
          });
      }