es4x: Seems like 0.10.0 vertx.deployVerticle options parameter is not working

src/main/javascript/verticle.js

var options = {
  "instances" : 1
};
console.log(options);
vertx.deployVerticle('Test', options);

src/main/java/Test.java

import io.vertx.core.AbstractVerticle;

public class Test extends AbstractVerticle {
  public void start() {
    System.out.println(config());

    vertx.createHttpServer().requestHandler(req -> {
      req.response()
        .putHeader("content-type", "text/plain")
        .end("Hello from Vert.x!");
    }).listen(8080);
  }
}

then pack into fat jar and run it I got an error:

Unhandled exception caused by java.lang.UnsupportedOperationException: Unsupported operation identifier ‘handle’ and object ‘{instances: 1}’(language: JavaScript, type: Object). Identifier is not executable or instantiable.

if we don’t place options then it works nicely