/src/main/java/org/htmlunit/html/HtmlPage.java
super.clone( ) ;
super.cleanUp ( ) ;
public void cleanUp() { if (cleaning_) { return; } cleaning_ = true; try { <extra_id_0> executeEventHandlersIfNeeded(Event.TYPE_UNLOAD); deregisterFramesIfNeeded(); } finally { cleaning_ = false; if (autoCloseableList_ != null) {