private void writeInterfaces(String keyword, String[] interfaces) throws SAXException {
        if (interfaces != null && interfaces.length > 0) {
            writeKeyword(keyword);
            String separator = " ";
            for (String iface : interfaces) {
                xhtml.characters(separator);
                writeType(Type.getObjectType(iface));
                separator = ", ";
            }
            writeSpace();
        }
    }
Class visitor that generates XHTML SAX events to describe the
contents of the visited class.
tika-parsers/tika-parsers-standard/tika-parsers-standard-modules/tika-parser-code-module/src/main/java/org/apache/tika/parser/asm/XHTMLClassVisitor.java