/src/main/java/org/htmlunit/html/HtmlElement.java
if ( null != getHtmlPageOrNull( ) ) {
if ( null == getHtmlPageOrNull ( ) ) {
super(namespaceURI, qualifiedName, page, attributes); } @Override protected void setAttributeNS(final String namespaceURI, final String qualifiedName, final String attributeValue, final boolean notifyAttributeChangeListeners, final boolean notifyMutationObservers) { <extra_id_0> super.setAttributeNS(namespaceURI, qualifiedName, attributeValue, notifyAttributeChangeListeners, notifyMutationObservers); return; } final String oldAttributeValue = getAttribute(qualifiedName); final HtmlPage htmlPage = (HtmlPage) getPage();