public static void putAuthenticationResultBuilder(final AuthenticationResultBuilder builder, final RequestContext ctx) {
        ctx.getConversationScope().put(CasWebflowConstants.ATTRIBUTE_AUTHENTICATION_RESULT_BUILDER, builder);
    }
Put authentication result builder.

@param builder the builder
@param ctx     the ctx
core/cas-server-core-web-api/src/main/java/org/apereo/cas/web/support/WebUtils.java