HtmlView htmlView = new HtmlView();
StringBuffer newHtml = new StringBuffer();
StringBuffer oldHtml = new StringBuffer();
diff_match_patch dmp = new diff_match_patch();
LinkedList<diff_match_patch.Diff> diffs = dmp.diff_main(oldContent, newContent);
for (diff_match_patch.Diff diff : diffs) {
String text = diff.text.replace("&", "&").replace("<", "<")
.replace(">", ">").replace(XmlUtil.crlf, "<br>");
if (diff.operation == diff_match_patch.Operation.INSERT) {