vertx.router 4.3.5, openjdk 11 is not working - router

Question

I am using the vertx-web, vertx-core 4.3.5 version and open jdk 11.
Without router i could able to start the vertx and access the url without any error.
Below is the working code,
server = vertx.createHttpServer().requestHandler(request -> {
String file = "";
if (request.path().equals("/services")) {
request.response().putHeader("content-type", "text/plain").setStatusCode(200).end("Success");
} else if (!request.path().contains("/services")) {
request.response().putHeader("content-type", "text/plain").setStatusCode(400).end();
}
});
// Now bind the server:
server.listen(7898, res -> {
if (res.succeeded()) {
System.out.println("Success " );
startPromise.complete();
} else {
startPromise.fail(res.cause());
}
});
I have tried to implement the vertx-router, but its not working.
Code:
Router router = Router.router(vertx);
router.get("/").handler(rc -> rc.response().end("OK"));
router.get("/greetings").handler(rc -> rc.response().end("Hello world"));
router.get("/greetings/:name").handler(rc -> rc.response().end("Hello " + rc.pathParam("name")));
server = vertx.createHttpServer().requestHandler(router);
Exception:
Router router = Router.router(vertx);
router.get("/").handler(rc -> rc.response().end("OK"));
router.get("/greetings").handler(rc -> rc.response().end("Hello world"));
router.get("/greetings/:name").handler(rc -> rc.response().end("Hello " + rc.pathParam("name")));
server = vertx.createHttpServer().requestHandler(router);
getting the follow exception,
[vert.x-eventloop-thread-0] ERROR io.vertx.core.impl.ContextBase - Unhandled exception
java.lang.NoClassDefFoundError: io/vertx/core/http/impl/HttpServerRequestWrapper
at io.vertx.ext.web.impl.RoutingContextImpl.(RoutingContextImpl.java:80)
at io.vertx.ext.web.impl.RouterImpl.handle(RouterImpl.java:68)
Can you please give the suggestion to resolve the issue.