Javadoc fix.


git-svn-id: https://svn.apache.org/repos/asf/sis/branches/JDK8@1605882 13f79535-47bb-0310-9956-ffa450edef68
Renamed LegacyProperties as LegacyPropertyAdapter.


git-svn-id: https://svn.apache.org/repos/asf/sis/branches/JDK8@1605887 13f79535-47bb-0310-9956-ffa450edef68