code: private void fixDocumentElements(final Page page) {
  
  		final NodeList heads = page.getElementsByTagName("head");
  		if (heads.getLength() > 1) {
  
  			final Node head1   = heads.item(0);
  			final Node head2   = heads.item(1);
  			final Node parent  = head1.getParentNode();
  
  			final boolean h1 = head1.hasChildNodes();
  			final boolean h2 = head2.hasChildNodes();
  
  			if (h1 && h2) {
  
  				// merge
  				for (Node child = head2.getFirstChild(); child != null; child = child.getNextSibling()) {
  
  					head2.removeChild(child);
  					head1.appendChild(child);
  				}
  
  				parent.removeChild(head2);
  
  			} else if (h1 && !h2) {
  
  				// remove head2
  				parent.removeChild(head2);
  
  			} else if (!h1 && h2) {
  
  				// remove head1
  				parent.removeChild(head1);
  
  			} else {
  
  				// remove first, doesn't matter
  				parent.removeChild(head1);
  			}
  		}
  	}
docs: Remove duplicate Head element from import process.
  @param page