Failure Handler Issue

gistfile1.java

import io.netty.handler.codec.http.HttpResponseStatus;
import io.vertx.core.AbstractVerticle;
import io.vertx.core.Future;
import io.vertx.core.http.HttpServerOptions;
import io.vertx.ext.apex.Route;
import io.vertx.ext.apex.Router;
import io.vertx.ext.apex.handler.LoggerHandler;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class TestServer extends AbstractVerticle {
    private static final Logger logger = LoggerFactory.getLogger(TestServer.class);

    @Override
    public void start(final Future<Void> onStartup) {
        Router testRouter1 = Router.router(vertx);

        // Test case 1, I'd expect to get log lines but only the LoggerHandler gets hit
        // 1) send something to /foo ie curl "http://localhost:8000/foo"
        Route testRoute = testRouter1.route();
        testRoute.handler(LoggerHandler.create());
        testRoute.failureHandler(routingContext -> {
            logger.warn("Test case 1, no path found for {}", routingContext.request().uri());
            routingContext.request().response().setStatusCode(HttpResponseStatus.NOT_FOUND.code()).end();
        });

        vertx.createHttpServer(new HttpServerOptions().setHost("0.0.0.0").setPort(8000))
                .requestHandler(testRouter1::accept).listen(startupResult -> {
            logger.info("start - thread: {} starting to handle http requests on 8000", Thread.currentThread().getId());
        });

        onStartup.complete();
    }
}