private static int findAvailableTcpPort() {
        try (ServerSocket sock = new ServerSocket(0)) {
            return sock.getLocalPort();
        } catch (IOException e) {
            return -1;
        }
    }
Simple extension for managing the lifecycle of a zuul server for use in integration testing

@author Justin Guerra
@since 6/9/25
zuul-integration-test/src/test/java/com/netflix/zuul/integration/ZuulServerExtension.java