It would be useful to add an option to javadoc (-autolink ?) to automatically generate links for API appearing in descriptions. It might work like this:
Here's a description:

/**
 * This method uses a <code>Date</code> instance for dates
 * and a <code>Time</code> instance for times.
 *
 * @see java.util.Date java.util.Time
 */

The presence of <code> in the description signals that this word
be matched by the same word in the @see line. This would generate
the following HTML:

This method uses a <code><a href="java.util.Date.html">Date</a></code>
instance for dates and a <code><a href="java.util.Time.html">Time</a></code>
instance for times.

Advantage: Adding links in the description is automatic, and the
<code> tags do not appreciably clutter the text.

We could use <tt>...</tt> instead of <code>...</code> as an explicit tag
to indicate "attach a link here from the @see list".