mapCache.put("A", "A_value");
    mapCache.put("B", "B_value");
    mapCache.put("C", "C_value");

    assertThat(mapCache.unmodifiableKeySet()).hasSize(3);
    for (String key : mapCache.unmodifiableKeySet()) {
      assertThat(mapCache.get(key)).isEqualTo(key + "_value");
    }
  }

  @Test
  public void testPutNewValue() {
    assertThat(mapCache.put("key", "value")).isNull();

     *
     * @param value1
     *            The first value
     * @param value2
     *            The second value
     * @param value3
     *            The third value
     * @param value4
     *            The fourth value
     * @param value5
     *            The fifth value
     */
    public Tuple5(final T1 value1, final T2 value2, final T3 value3, final T4 value4, final T5 value5) {
        this.value1 = value1;

     *            The second value
     * @param value3
     *            The third value
     */
    public Tuple3(final T1 value1, final T2 value2, final T3 value3) {
        this.value1 = value1;
        this.value2 = value2;
        this.value3 = value3;
    }

    /**
     * Returns the first value.
     *
     * @return The first value
     */
    public T1 getValue1() {
        return value1;
    }

        this.value1 = value1;
        this.value2 = value2;
        this.value3 = value3;
        this.value4 = value4;
    }

    /**
     * Returns the first value.
     *
     * @return The first value
     */
    public T1 getValue1() {
        return value1;
    }

    /**
     * Sets the first value.
     *
     * @param value1

      assertThat(cache.asMap().entrySet()).containsExactly(immutableEntry(key2, value2));
    }
  }

  // fails in Maven with 64-bit JDK: https://github.com/google/guava/issues/1568

  // A simple type whose .toString() will return the same value each time, but without maintaining
  // a strong reference to that value.
  static class Key {
    private final int value;

        String key = "key";
        String value1 = "a";
        String value2 = "b";
        String value3 = "c";
        settings.array().add(key, value1);
        settings.array().add(key, value2);
        settings.array().add(key, value3);
        assertEquals(3, settings.array().get(key).length);
        assertEquals(value1, settings.array().get(key)[0]);
        assertEquals(value2, settings.array().get(key)[1]);

      assertThat(cache.asMap().entrySet()).containsExactly(immutableEntry(key2, value2));
    }
  }

  // fails in Maven with 64-bit JDK: https://github.com/google/guava/issues/1568

  // A simple type whose .toString() will return the same value each time, but without maintaining
  // a strong reference to that value.
  static class Key {
    private final int value;

        String value1 = "a";
        String value2 = "b";
        String value3 = "c";
        settings.badword().add(value1);
        settings.badword().add(value2);
        settings.badword().add(value3);
        assertEquals(3, settings.badword().get(false).length);
        assertEquals(value1, settings.badword().get(false)[0]);
        assertEquals(value2, settings.badword().get(false)[1]);

        .add("\tkey\t:\tvalue\t") // '\t' also counts as whitespace
        .add("ping:  pong  ") // Value whitespace is trimmed.
        .add("kit:kat") // Space after colon is not required.
        .build()
    assertThat(headers.values("foo")).containsExactly("bar", "baz", "bak")
    assertThat(headers.values("key")).containsExactly("value")
    assertThat(headers.values("ping")).containsExactly("pong")

      }
    };
  }

  private static <T> ImmutableMultiset<T> multiset(T value, int count) {
    return multiset(ImmutableMap.of(value, count));
  }

  private static <T> ImmutableMultiset<T> multiset(T value1, int count1, T value2, int count2) {
    return multiset(ImmutableMap.of(value1, count1, value2, count2));
  }

  private static <T> ImmutableMultiset<T> multiset(Map<T, Integer> counts) {