code: @Override
      public void writeCatalogJar(byte[] catalogBytes) throws IOException
      {
          File configInfoDir = getConfigDirectory();
          configInfoDir.mkdirs();
  
          InMemoryJarfile.writeToFile(catalogBytes,
                                      new VoltFile(configInfoDir.getPath(),
                                                   InMemoryJarfile.TMP_CATALOG_JAR_FILENAME));
      }
docs: /*
  Write the catalog jar to a temporary jar file, this function
  is supposed to be called in an NT proc