code: @SafeVarargs
      public final List<V> putValues(String name, V... values) {
          List<V> list = new ArrayList<>();
          list.addAll(Arrays.asList(values));
          return super.put(name, list);
      }
docs: Put multi valued entry.
  
  @param name   The entry key.
  @param values The array of multiple values.
  @return The previous value or null.