code: def read_all(filename):
      
      array = javabridge.static_call(
          "Lweka/core/SerializationHelper;", "readAll",
          "(Ljava/lang/String;)[Ljava/lang/Object;",
          filename)
      if array is None:
          return None
      else:
          return javabridge.get_env().get_object_array_elements(array)
docs: Reads the serialized objects from disk. Caller must wrap objects in appropriate Python wrapper classes.
  
      :param filename: the file with the serialized objects
      :type filename: str
      :return: the list of JB_OBjects
      :rtype: list