jetty, intellij and servlet mapping

Hello, Im having an issue with a project with vaadin 7.3.7 Im working on, Im using Intellij and maven:

// @WebServlet(urlPatterns = “/“, name = “MyUIServlet”, asyncSupported = true)
@WebServlet(value = {”/app/
”, “/VAADIN/*”}, asyncSupported = true)
@VaadinServletConfiguration(ui = MyUI.class, productionMode = false)

If I use the default tags the aplication works fine, but if I change it to the /app path, It dosent work, I dont know why, Im new on IntelliJ and maven, but I have created other aplication with eclipse and vaadin 3.3.7, and that wasn´t a problem before, can some one help me to check waht is wrong? thanks in advance.

Ok, I found out that this is fixed on the Jetty configuracion pom, adding the context path of our aplication: