class ImmutableStew {

  private final StewData data;

  public ImmutableStew(int numPotatoes, int numCarrots, int numMeat, int numPeppers) {
    data = new StewData(numPotatoes, numCarrots, numMeat, numPeppers);
  }

  /**
   * Mix the stew.
   */
  public void mix() {<FILL_FUNCTION_BODY>}
}

    LOGGER
        .info("Mixing the immutable stew we find: {} potatoes, {} carrots, {} meat and {} peppers",
            data.numPotatoes(), data.numCarrots(), data.numMeat(), data.numPeppers());
  
<no_super_class>