code: private FileSystem newZipFileSystem(final File file) throws IOException {
  
          final Map<String, String> env = new HashMap<>();
          env.put("create", "true");
          return newFileSystem(URI.create("jar:" + file.toURI()), env);
      }
docs: Creates a new zip file and exposes the zip file as a filesystem to which paths and files can be added.
  
  @param file
  the file handle that denotes the zip file
  
  @return the FileSystem that represents the zip file
  
  @throws IOException