@update:;Updated Liferay's plugin configuration.
@add:;Added Not Found Service Web project.
@add:;Generated source code.
@add:;Added addNotFound method.
@update:;Regenerated source code.
@add:;Added unit test.
@add:;Added listener to process the messages.
@add:;Added liferay-versions property configured to 6.2.0+ and 6.2.10+