is the set of all methods declared with receiver <code>*T</code> or <code>T</code>.
</li>

<li>The method set of an <a href="#Interface_types">interface type</a> is the intersection
of the method sets of each type in the interface's <a href="#Interface_types">type set</a>
(the resulting method set is usually just the set of declared methods in the interface).
</li>
</ul>

<p>

</p>

<h3 id="Method_sets">Method sets</h3>
<p>
A type has a (possibly empty) <i>method set</i> associated with it.
The method set of an <a href="#Interface_types">interface type</a> is its interface.
The method set of any other type <code>T</code> consists of all
<a href="#Method_declarations">methods</a> declared with receiver type <code>T</code>.

        }

        final Class<?>[] interfaces = clazz.getInterfaces();
        final Type[] interfaceTypes = clazz.getGenericInterfaces();
        for (int i = 0; i < interfaces.length; ++i) {
            gatherTypeVariables(interfaces[i], interfaceTypes[i], map);
        }

        return map;
    }

    /**
     * パラメータ化された型(クラスまたはインタフェース)が持つ型変数および型引数を集めて<code>map</code>に追加します。