default void updateAll(List<Entry<K, Void>> updates) {
    throw new SamzaException("Not supported");
  }
Updates the mappings of the given keys with the corresponding updates.

@param updates the updates for the given keys
@throws NullPointerException if any of the specified {@code entries} has {@code null} as key.
samza-api/src/main/java/org/apache/samza/table/ReadWriteTable.java