int size = getNumElements();

    assertThrows(
        NullPointerException.class, () -> multimap().putAll(k3(), newArrayList(null, v3())));

    /*
     * In principle, a Multimap implementation could add e3 first before failing on the null. But
     * that seems unlikely enough to be worth complicating the test over, especially if there's any
     * chance that a permissive test could mask a bug.
     */
    expectUnchanged();

            .compute(
                k3(),
                (k, v) -> {
                  assertEquals(k3(), k);
                  assertNull(v);
                  return v3();
                }));
    expectAdded(e3());
    assertEquals(getNumElements() + 1, getMap().size());
  }

  @MapFeature.Require({SUPPORTS_PUT, SUPPORTS_REMOVE})
  public void testCompute_absentToAbsent() {
    assertNull(

            .compute(
                k3(),
                (k, v) -> {
                  assertEquals(k3(), k);
                  assertNull(v);
                  return v3();
                }));
    expectAdded(e3());
    assertEquals(getNumElements() + 1, getMap().size());
  }

  @MapFeature.Require({SUPPORTS_PUT, SUPPORTS_REMOVE})
  public void testCompute_absentToAbsent() {
    assertNull(

          mapEntry(sampleKeys.e1(), createCollection(sampleValues.e1())),
          mapEntry(sampleKeys.e2(), createCollection(sampleValues.e2())),
          mapEntry(sampleKeys.e3(), createCollection(sampleValues.e3())),
          mapEntry(sampleKeys.e4(), createCollection(sampleValues.e4())));
    }

    @Override
    public Map<K, Collection<V>> create(Object... elements) {

          Multisets.immutableEntry(samples.e0(), 3),
          Multisets.immutableEntry(samples.e1(), 4),
          Multisets.immutableEntry(samples.e2(), 1),
          Multisets.immutableEntry(samples.e3(), 5),
          Multisets.immutableEntry(samples.e4(), 2));
    }

    @Override
    public Set<Multiset.Entry<E>> create(Object... entries) {
      List<Object> contents = new ArrayList<>();

          Multisets.immutableEntry(samples.e0(), 3),
          Multisets.immutableEntry(samples.e1(), 4),
          Multisets.immutableEntry(samples.e2(), 1),
          Multisets.immutableEntry(samples.e3(), 5),
          Multisets.immutableEntry(samples.e4(), 2));
    }

    @Override
    public Set<Multiset.Entry<E>> create(Object... entries) {
      List<Object> contents = new ArrayList<>();

    Comparator<? super E> comparator = emptyMultiset.comparator();
    SampleElements<E> samples = delegate.samples();
    List<E> samplesList =
        asList(samples.e0(), samples.e1(), samples.e2(), samples.e3(), samples.e4());

    sort(samplesList, comparator);
    E firstInclusive = samplesList.get(0);
    E lastInclusive = samplesList.get(samplesList.size() - 1);

    return SortedMultisetTestSuiteBuilder.using(

0000430 79 64 e2 12 4d c8 82 a1 81 19 2d aa 44 6d 87 54
0000440 84 71 c1 f6 d4 ca 25 8c 77 b9 08 c7 c8 5e 10 8a
0000450 8f 61 ed 8c ba 30 1f 79 9a c7 60 34 2b b9 8c f8
0000460 18 a6 83 1b e3 9f ad 79 fe fd 1b 8b f1 fc 41 6f
0000470 d4 13 1f e3 b8 83 ba 64 92 e7 eb e4 77 05 8f ba
0000480 fa 3b 00 00 ff ff 50 4b 07 08 a6 18 b1 91 5e 04
0000490 00 00 e4 47 00 00 50 4b 01 02 14 00 14 00 08 00

//
// Then, the ETag of the object is computed as MD5 of all individual
// part checksums. S3 also encodes the number of parts into the ETag
// by appending a -<number-of-parts> at the end:
//
//	ETag := MD5(e1 || e2 || e3 ... || eN) || -N
//
//	For example: ceb8853ddc5086cc4ab9e149f8f09c88-5
//
// However, this scheme is only used for multipart objects that are
// not encrypted.
//
// # Server-side Encryption
//

    // medium mathematical space
    assertThat(parse("http://h/\u205f").encodedPath).isEqualTo("/%E2%81%9F")
    // ideographic space
    assertThat(parse("http://h/\u3000").encodedPath).isEqualTo("/%E3%80%80")
  }

  @Test
  fun newBuilderResolve() {
    // Non-exhaustive tests because implementation is the same as resolve.
    val base = parse("http://host/a/b")