NBReadServlet servlet = new NBReadServlet(ignoreIsReady);
String servletName = NBReadServlet.class.getName();
Tomcat.addServlet(ctx, servletName, servlet);
ctx.addServletMapping("/", servletName);
tomcat.start();
Map<String, List<String>> resHeaders = new HashMap<>();
int rc = postUrl(true, new DataWriter(500), "http://localhost:" +
getPort() + "/", new ByteChunk(), resHeaders, null);