web.xml
Was following one of training with Spring webmvc 4.2.3, while I'm using Spring webmvc 5.2.3 they suggested to create a form
that was causing the "disclose" error.
Altered as below to make it work. Looks like method above was the culprit.
in fact, exploring further, method="post" in form annotation would work if properly declared:
@RequestMapping(value="/accountCreated", method=RequestMethod.POST)