return map.entryFactory.newEntry(this, checkNotNull(key), hash, next);
    }

    /**
     * Copies {@code original} into a new entry chained to {@code newNext}. Returns the new entry,
     * or {@code null} if {@code original} was already garbage collected.
     */
    @CheckForNull
    @GuardedBy("this")

      return map.entryFactory.newEntry(this, checkNotNull(key), hash, next);
    }

    /**
     * Copies {@code original} into a new entry chained to {@code newNext}. Returns the new entry,
     * or {@code null} if {@code original} was already garbage collected.
     */
    @CheckForNull
    @GuardedBy("this")