/**
     * Creates a copy of this reference for the given entry.
     *
     * <p>{@code value} may be null only for a loading reference.
     */
    ValueReference<K, V> copyFor(
        ReferenceQueue<V> queue, @CheckForNull V value, ReferenceEntry<K, V> entry);

    /**
     * Notify pending loads that a new value was set. This is only relevant to loading value
     * references.
     */

          return null;
        }
        StrongKeyWeakValueEntry<K, V> newEntry = newEntry(segment, entry.key, entry.hash, newNext);
        newEntry.valueReference = entry.valueReference.copyFor(segment.queueForValues, newEntry);
        return newEntry;
      }

      @Override
      public void setValue(
          StrongKeyWeakValueSegment<K, V> segment, StrongKeyWeakValueEntry<K, V> entry, V value) {

          return null;
        }
        StrongKeyWeakValueEntry<K, V> newEntry = newEntry(segment, entry.key, entry.hash, newNext);
        newEntry.valueReference = entry.valueReference.copyFor(segment.queueForValues, newEntry);
        return newEntry;
      }

      @Override
      public void setValue(
          StrongKeyWeakValueSegment<K, V> segment, StrongKeyWeakValueEntry<K, V> entry, V value) {

      return 1;
    }

    @Override
    public @Nullable ReferenceEntry<K, V> getEntry() {
      return null;
    }

    @Override
    public ValueReference<K, V> copyFor(
        ReferenceQueue<V> queue, V value, ReferenceEntry<K, V> entry) {
      return this;
    }

    public void setLoading(boolean loading) {
      this.loading = loading;
    }

      return 1;
    }

    @Override
    public @Nullable ReferenceEntry<K, V> getEntry() {
      return null;
    }

    @Override
    public ValueReference<K, V> copyFor(
        ReferenceQueue<V> queue, V value, ReferenceEntry<K, V> entry) {
      return this;
    }

    public void setLoading(boolean loading) {
      this.loading = loading;
    }