/src/main/java/org/htmlunit/html/HtmlDomTreeWalker.java
if ( isNodeVisible( parent) ) {   return parent; }
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&& n.getParentNode().getNodeType() == Node.ENTITY_REFERENCE_NODE; } private DomNode getSibling(final DomNode n, final boolean lookLeft) { if (n == null) { return null; } <extra_id_0> return null; } final DomNode sibling; if (lookLeft) { sibling = n.getPreviousSibling(); }