private Profile doVerifyResponse(final Map<String, String> requestParams)
throws Exception {
LOG.info("Retrieving Access Token in verify response function");
if (requestParams.get("error_reason") != null
&& "user_denied".equals(requestParams.get("error_reason"))) {
throw new UserDeniedPermissionException();
}
accessGrant = authenticationStrategy.verifyResponse(requestParams,
MethodType.POST.toString());
if (accessGrant != null) {