if (model.isKnownType(method.getOwnerClass().getClassName())) {
            Element apilink = document.createElement("apilink");
            apilink.setAttribute("class", method.getOwnerClass().getClassName());
            apilink.setAttribute("method", method.getOverrideSignature());
            return apilink;
        } else {
            listener.warning(String.format("Could not generate link for method %s", method));

        metaData.addTypeArg(type('Type2'))

        when:
        def link = renderer.link(metaData, listener)

        then:
        format(link) == '<classname><apilink class="org.gradle.SomeClass"/>&lt;<apilink class="Type1"/>, <apilink class="Type2"/>&gt;</classname>'
        _ * model.isKnownType('org.gradle.SomeClass') >> true
        _ * model.isKnownType('Type1') >> true
        _ * model.isKnownType('Type2') >> true

        list.appendChild(listItem);
        Element seg = document.createElement("seg");
        listItem.appendChild(seg);
        Element apilink = document.createElement("apilink");
        seg.appendChild(apilink);
        apilink.setAttribute("class", classDoc.getName());
        apilink.setAttribute("style", classDoc.getStyle());
    }

    private void addSubtypeLinks(ClassDoc classDoc, Element parent, Document document) {

                    method, className, CollectionUtils.join(", ", candidates));
            message += "\nThis problem may happen when some apilink from docbook template xmls is incorrect. Example:"
                    + "\nIncorrect: <apilink class=\"org.gradle.api.Project\" method=\"tarTree\"/>"
                    + "\nCorrect:   <apilink class=\"org.gradle.api.Project\" method=\"tarTree(Object)\"/>";
            throw new RuntimeException(message);
        }

        linkRepository.load(linksFile.get().asFile)

        findAll(doc, 'apilink').each { Element element ->
            String className = element.'@class'
            if (!className) {
                throw new RuntimeException('No "class" attribute specified for <apilink> element.')
            }
            String methodName = element.'@method'

                        <member>
                            <apilink class="org.gradle.Subtype1"/>
                        </member>
                        <member>
                            <apilink class="org.gradle.Subtype2"/>
                        </member>
                        <member>
                            <apilink class="org.gradle.Subtype3"/>
                        </member>