/src/main/java/org/htmlunit/html/HtmlDomTreeWalker.java
final DomNode left = getSibling( n.getPreviousSibling( ) , true) ;
final DomNode left = getEquivalentLogical ( n.getPreviousSibling ( ) , true ) ;
return newNode; } private DomNode getPreviousNode(final DomNode n) { if (n == root_) { return null; } <extra_id_0> if (left == null) { final DomNode parent = n.getParentNode(); if (parent == null) { return null; } if (isNodeVisible(parent)) {