void invokeChainWithRemoteUser( FilterChain chain, HttpServletRequest httpRequest, HttpServletResponse httpResponse, SAMLAssertion assertion) throws IOException, ServletException { // set assertion as an attribute in the request try { httpRequest.setAttribute( ACS_SAML, Utils.getXMLStringFromNode(assertion.getAssertionXMLElement())); } catch (Exception e) { Utils.logError("Invalid Saml Content.", e, LOG); throw new ServletException("Invalid SAML Content"); } String remoteUser = getUserFromAssertion(assertion); invokeChainWithRemoteUser(chain, httpRequest, httpResponse, remoteUser); }