expectReplacement(entry(k0(), v3()));
    assertEquals(getNumElements(), getMap().size());
  }

  @MapFeature.Require({SUPPORTS_PUT, SUPPORTS_REMOVE})
  @CollectionSize.Require(absent = ZERO)
  public void testCompute_presentToAbsent() {
    assertNull(
        "Map.compute(present, functionReturningNull) should return null",
        getMap()
            .compute(
                k0(),
                (k, v) -> {