*
   * <p>This implementation is highly efficient when {@code elements} is itself a {@link Multiset}.
   *
   * @param elements the elements that the multiset should contain
   * @throws IllegalArgumentException if {@code elements} is empty
   */
  public static <E extends Enum<E>> EnumMultiset<E> create(Iterable<E> elements) {
    Iterator<E> iterator = elements.iterator();

   * @param duration the length of time after a value is created that it should stop being returned
   *     by subsequent {@code get()} calls
   * @param unit the unit that {@code duration} is expressed in
   * @throws IllegalArgumentException if {@code duration} is not positive
   * @since 2.0
   */
  @SuppressWarnings("GoodTime") // Prefer the Duration overload
  public static <T extends @Nullable Object> Supplier<T> memoizeWithExpiration(

        assertNull(exception.getCause());
    }

    public void test_constructor_withCauseChain() {
        // Test constructor with chained exceptions
        final Exception rootCause = new IllegalArgumentException("Invalid argument");
        final Exception middleCause = new RuntimeException("Runtime error", rootCause);
        final JobProcessingException exception = new JobProcessingException(middleCause);

          30,
          ticker.read());
    }
  }

  public void testAutoIncrement_negative() {
    FakeTicker ticker = new FakeTicker();
    assertThrows(
        IllegalArgumentException.class, () -> ticker.setAutoIncrementStep(-1, NANOSECONDS));
  }

  @GwtIncompatible // concurrency

  public void testConcurrentAdvance() throws Exception {
    FakeTicker ticker = new FakeTicker();

    Collector<Entry<AnEnum, Integer>, ?, ImmutableMap<AnEnum, Integer>> collector =
        toImmutableEnumMap(Entry::getKey, Entry::getValue);
    assertThrows(
        IllegalArgumentException.class,
        () -> Stream.of(mapEntry(AnEnum.A, 1), mapEntry(AnEnum.A, 11)).collect(collector));
  }

  public void testToImmutableMapMerging() {

        this.handle.send(buf, off, length);
    }

    @Override
    protected int doReceiveFragment(final byte[] buf) throws IOException {
        if (buf.length < getMaxRecv()) {
            throw new IllegalArgumentException("buffer too small");
        }

        int off = this.handle.recv(buf, 0, buf.length);
        if (buf[0] != 5 || buf[1] != 0) {
            throw new IOException("Unexpected DCERPC PDU header");
        }

    for (String name : VALID_NAME) {
      InternetDomainName unused = InternetDomainName.from(name);
    }
  }

  public void testInvalid() {
    for (String name : INVALID_NAME) {
      assertThrows(IllegalArgumentException.class, () -> InternetDomainName.from(name));
    }
  }

  public void testPublicSuffix() {
    for (String name : PS) {
      InternetDomainName domain = InternetDomainName.from(name);

        assertEquals(2.5f, item2.getUserBoost(), 0.001f); // Should keep the value
    }

    @Test(expected = IllegalArgumentException.class)
    public void testMergeDifferentIds() {
        // Test that merge throws exception for different IDs
        String[] text1 = { "item1" };
        String[][] readings1 = { { "read1" } };

      try {
        File testFile = new File(testFileUrl.toURI());
        testDir = testFile.getParentFile(); // the testdata directory
      } catch (Exception ignore) {
        // probably URISyntaxException or IllegalArgumentException
        // fall back to copying URLs to files in the testDir == null block below
      }
    }

    if (testDir == null) {

   * @param timeoutUnit with timeoutDuration, the maximum length of time that callers are willing to
   *     wait on each method call to the proxy
   * @return a time-limiting proxy
   * @throws IllegalArgumentException if {@code interfaceType} is a regular class, enum, or
   *     annotation type, rather than an interface
   */
  <T> T newProxy(T target, Class<T> interfaceType, long timeoutDuration, TimeUnit timeoutUnit);

  /**