when:
        def result = parser.parse(classMetaData, listener)

        then:
        format(result.docbook) == '''<para><xref/> <xref/></para>'''
        1 * linkConverter.resolve('someClass', classMetaData, listener) >> document.createElement("xref")
        1 * linkConverter.resolve('otherClass#method(a, b) label', classMetaData, listener) >> document.createElement("xref")
        0 * linkConverter._
    }

        private final GenerationListener listener;

        private UnknownJavadocTagHandler(DocBookBuilder nodes, Document document, GenerationListener listener) {
            this.nodes = nodes;
            this.document = document;
            this.listener = listener;
        }

        @Override
        public boolean onJavadocTag(String tag, String value) {