@MapFeature.Require(SUPPORTS_PUT)
  @CollectionSize.Require(absent = ZERO)
  public void testSetValue_valueAbsent() {
    for (Entry<K, V> entry : getMap().entrySet()) {
      if (entry.getKey().equals(k0())) {
        assertEquals("entry.setValue() should return the old value", v0(), entry.setValue(v3()));
      }
    }
    expectReplacement(entry(k0(), v3()));
  }

  @MapFeature.Require(SUPPORTS_PUT)

    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }

        if (obj == null) {
            return false;
        }

        if (!FileSource.class.equals(obj.getClass())) {
            return false;
        }

        FileSource other = (FileSource) obj;
        return this.path.equals(other.path);
    }

      for (BigInteger q : NONZERO_BIGINTEGER_CANDIDATES) {
        if (isAndroid && p.equals(BAD_FOR_ANDROID_P) && q.equals(BAD_FOR_ANDROID_Q)) {
          // https://issuetracker.google.com/issues/37074172
          continue;
        }

        boolean dividesEvenly = p.remainder(q).equals(ZERO);

        try {
          BigInteger quotient = BigIntegerMath.divide(p, q, UNNECESSARY);

}

// ToString returns the value if string.
func (v Value) ToString() (val string, ok bool) {
	val, ok = v.value.(string)
	return val, ok
}

// Equals returns whether the values strictly match.
// Both type and value must match.
func (v Value) Equals(b Value) (ok bool) {
	if !v.SameTypeAs(b) {
		return false
	}
	return reflect.DeepEqual(v.value, b.value)
}

    }

    @Override
    public boolean equals(final Object obj) {
        if (this == obj) {
            return true;
        }
        if (!(obj instanceof final SitemapUrl sitemapUrl)) {
            return false;
        }
        if (StringUtil.equals(loc, sitemapUrl.loc) && StringUtil.equals(changefreq, sitemapUrl.changefreq)

                return repositories;
            }

            @Override
            public boolean equals(Object o) {
                return o instanceof DefaultArtifactResolverRequest that
                        && Objects.equals(coordinates, that.coordinates)
                        && Objects.equals(repositories, that.repositories);
            }

            @Override
            public int hashCode() {

    }
  }

  static class SlowElement extends Element {
    SlowElement(int hash) {
      super(hash);
    }

    @Override
    public boolean equals(@Nullable Object obj) {
      return slowItDown() != 1 && super.equals(obj);
    }

    @Override
    public int hashCode() {
      return slowItDown() + hash;
    }

    @Override
    public int compareTo(Element e) {

              return endOfData();
            }
          };
        }
      };
    }

    @Override
    public boolean equals(@Nullable Object o) {
      if (o instanceof RangeMap) {
        RangeMap<?, ?> rangeMap = (RangeMap<?, ?>) o;
        return asMapOfRanges().equals(rangeMap.asMapOfRanges());
      }
      return false;
    }

    @Override
    public int hashCode() {

        }

        @Override
        public boolean equals(Object o) {
            if (this == o) {
                return true;
            }
            if (o == null || getClass() != o.getClass()) {
                return false;
            }
            Key key = (Key) o;
            return groupId.equals(key.groupId)
                    && artifactId.equals(key.artifactId)

	if err != nil {
		t.Fatalf("expected nil err, got %v", err)
	}

	if !t1.Equal(t2) {
		t.Fatalf("expected time to be equal: %s != %s", t1, t2)
	}

	time.Sleep(3 * time.Second)

	t3, err := cache.GetWithCtx(ctx)
	if err != nil {
		t.Fatalf("expected nil err, got %v", err)
	}

	if t1.Equal(t3) {
		t.Fatalf("expected time to be un-equal: %s == %s", t1, t3)
	}
}

func TestCache(t *testing.T) {