}
				}
			}

			fv, zero := v.Interface(), v.IsZero()
			return fv, zero
		}
	}

	if field.Serializer != nil {
		oldValuerOf := field.ValueOf
		field.ValueOf = func(ctx context.Context, v reflect.Value) (interface{}, bool) {
			value, zero := oldValuerOf(ctx, v)

			s, ok := value.(SerializerValuerInterface)
			if !ok {
				s = field.Serializer
			}

			return &serializer{

    InternalEntry<Object, Object, ?> entry = segment.getEntry(key, hash);
    WeakValueReference<Object, Object, ?> oldValueRef =
        segment.newWeakValueReferenceForTesting(entry, oldValue);
    segment.setWeakValueReferenceForTesting(entry, oldValueRef);
    assertSame(oldValue, segment.get(key, hash));
    oldValueRef.clear();
    assertNull(segment.put(key, hash, newValue, false));
    assertEquals(1, segment.count);

    InternalEntry<Object, Object, ?> entry = segment.getEntry(key, hash);
    WeakValueReference<Object, Object, ?> oldValueRef =
        segment.newWeakValueReferenceForTesting(entry, oldValue);
    segment.setWeakValueReferenceForTesting(entry, oldValueRef);
    assertSame(oldValue, segment.get(key, hash));
    oldValueRef.clear();
    assertNull(segment.put(key, hash, newValue, false));
    assertEquals(1, segment.count);