code: private void associateJavadoc(List<Comment> comments, List<Node> nodes) {
  		final TreeMap<Integer, Node> startPosMap = Maps.newTreeMap();
  		for (Node node : nodes) node.accept(new ForwardingAstVisitor() {
  			@Override public boolean visitNode(Node node) {
  				if (node.isGenerated()) return false;
  				int startPos = node.getPosition().getStart();
  				Node current = startPosMap.get(startPos);
  				if (current == null || !(current instanceof JavadocContainer)) {
  					startPosMap.put(startPos, node);
  				}
  				
  				return false;
  			}
  		});
  		
  		for (Comment comment : comments) {
  			if (!comment.isJavadoc()) continue;
  			Map<Integer, Node> tailMap = startPosMap.tailMap(comment.getPosition().getEnd());
  			if (tailMap.isEmpty()) continue;
  			Node assoc = tailMap.values().iterator().next();
  			if (!(assoc instanceof JavadocContainer)) continue;
  			JavadocContainer jc = (JavadocContainer) assoc;
  			if (jc.rawJavadoc() != null) {
  				if (jc.rawJavadoc().getPosition().getEnd() >= comment.getPosition().getEnd()) continue;
  			}
  			jc.rawJavadoc(comment);
  		}
  	}
docs: Associates comments that are javadocs to the node they belong to, by checking if the node that immediately follows a javadoc node is a JavadocContainer.