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