HTTP service serving /ping endpoint

PingService.java

// Set up Handlers for Ping
public class PingHandler extends AbstractHttpHandler {
  @Path("/ping")
  @GET
  public void handleThePing(HttpRequest request, HttpResponder responder){
    responder.sendString(HttpResponseStatus.OK, "OK");
  }
}

// Setup HTTP service and add Handlers
NettyHttpService service = NettyHttpService.builder()
                           .setPort(7777)
                           .addHttpHandlers(ImmutableList.of(new PingHandler()))
                           .build();

// Start the HTTP service
service.startAndWait();