assertEquals("gmail.com", hp.getHost());
    assertTrue(hp.hasPort());
    assertEquals(81, hp.getPort());

    assertThrows(IllegalArgumentException.class, () -> HostAndPort.fromParts("gmail.com:80", 81));

    assertThrows(IllegalArgumentException.class, () -> HostAndPort.fromParts("gmail.com", -1));
  }

  public void testFromHost() {
    HostAndPort hp = HostAndPort.fromHost("gmail.com");

                        .setAnalyzer(contentsReadingAnalyzerName).execute().actionGet(settings.getIndicesTimeout());
                return analyzeResponse.getTokens();
            } catch (final IllegalArgumentException e) {
                return analyze(text, field, lang);
            }
        }
    }

    public static boolean isSupportedLanguage(final String lang) {

        assertThrows(IllegalArgumentException.class, () -> cli.calculateDegreeOfConcurrency("AA"));
        assertThrows(IllegalArgumentException.class, () -> cli.calculateDegreeOfConcurrency("C"));
        assertThrows(IllegalArgumentException.class, () -> cli.calculateDegreeOfConcurrency("C2.2C"));

   *
   * <p>If this graph is directed, the endpoints must be ordered.
   *
   * @throws IllegalArgumentException if either endpoint is not an element of this graph
   * @throws IllegalArgumentException if the endpoints are unordered and the graph is directed
   * @since 27.1
   */
  Optional<V> edgeValue(EndpointPair<N> endpoints);

  /**

              e -> e instanceof ConcurrentModificationException)
          .put(ExecutionException.class, e -> e instanceof ExecutionException)
          .put(IllegalArgumentException.class, e -> e instanceof IllegalArgumentException)
          .put(IllegalStateException.class, e -> e instanceof IllegalStateException)
          .put(IndexOutOfBoundsException.class, e -> e instanceof IndexOutOfBoundsException)

              e -> e instanceof ConcurrentModificationException)
          .put(ExecutionException.class, e -> e instanceof ExecutionException)
          .put(IllegalArgumentException.class, e -> e instanceof IllegalArgumentException)
          .put(IllegalStateException.class, e -> e instanceof IllegalStateException)
          .put(IndexOutOfBoundsException.class, e -> e instanceof IndexOutOfBoundsException)

   *
   * <p>If this network is directed, the endpoints must be ordered.
   *
   * @throws IllegalArgumentException if there are multiple parallel edges connecting {@code nodeU}
   *     to {@code nodeV}
   * @throws IllegalArgumentException if either endpoint is not an element of this network
   * @throws IllegalArgumentException if the endpoints are unordered and the network is directed
   * @since 27.1
   */
  @CheckForNull

        assertThrows(
            IllegalArgumentException.class, () -> network.edgesConnecting(N1, NODE_NOT_IN_GRAPH)));
    assertNodeNotInGraphErrorMessage(
        assertThrows(
            IllegalArgumentException.class, () -> network.edgesConnecting(NODE_NOT_IN_GRAPH, N2)));
    assertNodeNotInGraphErrorMessage(
        assertThrows(
            IllegalArgumentException.class,

    assertThat(DoubleMath.mean(ImmutableList.of(1.1))).isWithin(1.0e-10).of(1.1);
    assertThrows(IllegalArgumentException.class, () -> DoubleMath.mean(ImmutableList.<Double>of()));
    assertThrows(
        IllegalArgumentException.class, () -> DoubleMath.mean(ImmutableList.of(Double.NaN)));
    assertThrows(
        IllegalArgumentException.class,
        () -> DoubleMath.mean(ImmutableList.of(Double.POSITIVE_INFINITY)));
  }

  }

  @Test fun addThrowsOnEmptyName() {
    assertFailsWith<IllegalArgumentException> {
      Headers.Builder().add(": bar")
    }
    assertFailsWith<IllegalArgumentException> {
      Headers.Builder().add(" : bar")
    }
  }

  @Test fun addThrowsOnNoColon() {
    assertFailsWith<IllegalArgumentException> {
      Headers.Builder().add("foo bar")
    }
  }