Fix samlValidate NoSuchMethodError exception

 src/main/java/org/keycloak/protocol/cas/endpoints/SamlValidateEndpoint.java

@@ -36,9 +36,9 @@
    @Consumes("text/xml;charset=utf-8")
    @Produces("text/xml;charset=utf-8")
    public Response validate(String input) {
        MultivaluedMap<String, String> queryParams = request.getUri().getQueryParameters();
        MultivaluedMap<String, String> queryParams = session.getContext().getUri().getQueryParameters();
        try {
            String soapAction = Optional.ofNullable(request.getHttpHeaders().getHeaderString("SOAPAction")).map(s -> s.trim().replace("\"", "")).orElse("");
            String soapAction = Optional.ofNullable(session.getContext().getRequestHeaders().getHeaderString("SOAPAction")).map(s -> s.trim().replace("\"", "")).orElse("");
            if (!soapAction.equals("http://www.oasis-open.org/committees/security")) {
                throw new CASValidationException(CASErrorCode.INTERNAL_ERROR, "Not a validation request", Response.Status.BAD_REQUEST);
            }
@@ -49,7 +49,7 @@
            checkRealm();
            checkSsl();
            checkClient(service);
            String issuer = Urls.realmIssuer(request.getUri().getBaseUri(), realm.getName());
            String issuer = Urls.realmIssuer(session.getContext().getUri().getBaseUri(), realm.getName());
            String ticket = getTicket(input);

            checkTicket(ticket, renew);