/src/main/java/org/htmlunit/html/HtmlPage.java
executeEventHandlersIfNeeded( Event.TYPE_UNLOAD) ; super.cleanUp( ) ;try {
try { super.cleanUp ( ) ; executeEventHandlersIfNeeded ( Event.TYPE_UNLOAD ) ;
@Override public void cleanUp() { if (cleaning_) { return; } cleaning_ = true; <extra_id_0> deregisterFramesIfNeeded(); } finally { cleaning_ = false; if (autoCloseableList_ != null) { for (final AutoCloseable closeable : new ArrayList<>(autoCloseableList_)) {