Fix for bug 774.

Fixed incorrect javadoc comment.

Change-Id: I89605ddaec328f26d7aeabb411931961b9ade471
Signed-off-by: Shigeru Yasuda <s-yasuda@da.jp.nec.com>
(cherry picked from commit 5a8a2c0e0d84c81fe1e7ea612b38423430406093)