@Override
        public String toString() {
            final String mode = managed != null ? managed ? "managed" : "unmanaged"
                                                : "auto";
            return "(" + bean + ", " + mode + ')';
        }
Adds a {@link Consumer} that performs additional configuration operations against
the Jetty {@link Server} created by a {@link JettyService}.

@deprecated Use {@link #customizer(Consumer)}.
jetty/jetty11/src/main/java/com/linecorp/armeria/server/jetty/AbstractJettyServiceBuilder.java