public void copyOfImmutableNetwork_optimized() {
    Network<String, String> network1 =
        ImmutableNetwork.copyOf(NetworkBuilder.directed().<String, String>build());
    Network<String, String> network2 = ImmutableNetwork.copyOf(network1);

    assertThat(network2).isSameInstanceAs(network1);
  }

  @Test
  public void edgesConnecting_directed() {
    MutableNetwork<String, String> mutableNetwork =

    public void setFrom(String from, String personal) {
        doSetFrom(from, personal);
    }

    public void addTo(String to) {
        doAddTo(to);
    }

    public void addTo(String to, String personal) {
        doAddTo(to, personal);
    }

    public void addCc(String cc) {
        doAddCc(cc);
    }

    public void addCc(String cc, String personal) {
        doAddCc(cc, personal);

    }

    @Override
    public String toString() {
      return sourceFormat + ".converterTo(" + targetFormat + ")";
    }

    private static final long serialVersionUID = 0L;
  }

  abstract String normalizeWord(String word);

  String normalizeFirstWord(String word) {
    return normalizeWord(word);
  }

  private static String firstCharOnlyToUpper(String word) {
    return word.isEmpty()

        protected final String readingAnalyzer;
        protected final String readingTermAnalyzer;
        protected final String normalizeAnalyzer;
        protected final String contentsAnalyzer;
        protected final String contentsReadingAnalyzer;

        public FieldAnalyzerMapping(final String readingAnalyzer, final String readingTermAnalyzer, final String normalizeAnalyzer,

    HashSet<String> mut = Sets.union(friends, enemies).copyInto(new HashSet<String>());

    enemies.add("Buck");
    assertEquals(6, all.size());
    assertEquals(5, immut.size());
    assertEquals(5, mut.size());
  }

  public void testIntersection() {
    Set<String> friends = newHashSet("Tom", "Joe", "Dave");
    Set<String> enemies = newHashSet("Dick", "Harry", "Tom");

        ArrayMap<String, String> m = new ArrayMap<String, String>(1);
        m.getEntryAt(1);
    }

    /**
     * @throws Exception
     */
    @Test
    public void testSerialize() throws Exception {
        @SuppressWarnings("unchecked")
        ArrayMap<String, String> copy = (ArrayMap<String, String>) SerializeUtil.serialize(map);

    SortedSet<String> set = of("e", "a", "f", "b", "d", "c");
    SortedSet<String> subset = set.subSet("c", "e");
    SortedSet<String> copy = copyOf(subset);
    assertEquals(subset, copy);
  }

  public void testCopyOf_headSet() {
    SortedSet<String> set = of("e", "a", "f", "b", "d", "c");
    SortedSet<String> headset = set.headSet("d");
    SortedSet<String> copy = copyOf(headset);
    assertEquals(headset, copy);
  }

        FloatBuffer.class,
        DoubleBuffer.class,
        String[].class,
        Object[].class,
        int[].class);
  }

  public void testStringArray() {
    FreshValueGenerator generator = new FreshValueGenerator();
    String[] a1 = generator.generateFresh(String[].class);
    String[] a2 = generator.generateFresh(String[].class);
    assertFalse(a1[0].equals(a2[0]));
  }

    public static final String ID = "_id";
    public static final String TEXT = "text";
    public static final String READING_PREFIX = "reading_";
    public static final String SCORE = "score";
    public static final String QUERY_FREQ = "queryFreq";
    public static final String DOC_FREQ = "docFreq";
    public static final String USER_BOOST = "userBoost";
    public static final String KINDS = "kinds";

    private final String token;

    private final String segmentation;

    private final String reading;

    private final String pos;

    private String newToken;

    private String newSegmentation;

    private String newReading;

    private String newPos;

    public KuromojiItem(final long id, final String token, final String segmentation, final String reading, final String pos) {