@Override
    public boolean isAbstract() {
        final boolean b = "true".equals(getTag().getAttributeValue("abstract", XsltSupport.PLUGIN_EXTENSIONS_NS));
        if (!b) {
            final XsltTemplate template = getTemplate();
            return template != null && template.isAbstract();
        }
        return b;
    }
@Override
    public boolean isAbstract()