In the following example, the method description is copied down, but the @param and @return are not. This appears to be contrary to the documentation.

package jd;

public class JD {
    /** 
     * description
     *
     * @param o object
     * @return value
     * @throws IOException because
     */
    public boolean foo(Object o) throws java.io.IOException {
	return false;
    }

    public static class Bar extends JD {
	/**
	 * @throws IOException why not
	 */
	public boolean foo(Object o) throws java.io.IOException {
	    return false;
	}
    }
}