2017-01-09 09:26:24.453  INFO 80996 --- [           main] c.v.s.b.i.VaadinServletConfiguration     : Registering Vaadin servlet
2017-01-09 09:26:24.453  INFO 80996 --- [           main] c.v.s.b.i.VaadinServletConfiguration     : Servlet will be mapped to URLs [/vaadinServlet/*, /VAADIN/*]
2017-01-09 09:26:24.469  INFO 80996 --- [           main] c.v.s.b.i.VaadinServletConfiguration     : Setting servlet init parameters
2017-01-09 09:26:24.469  INFO 80996 --- [           main] c.v.s.b.i.VaadinServletConfiguration     : Set servlet init parameter [productionMode] = [true]
2017-01-09 09:26:24.470  INFO 80996 --- [           main] c.v.s.b.i.VaadinServletConfiguration     : Set servlet init parameter [resourceCacheTime] = [3600]
2017-01-09 09:26:24.470  INFO 80996 --- [           main] c.v.s.b.i.VaadinServletConfiguration     : Set servlet init parameter [heartbeatInterval] = [60]
2017-01-09 09:26:24.470  INFO 80996 --- [           main] c.v.s.b.i.VaadinServletConfiguration     : Set servlet init parameter [closeIdleSessions] = [true]
2017-01-09 09:26:26.260  INFO 80996 --- [           main] c.v.s.b.i.VaadinServletConfiguration     : Checking the application context for Vaadin UI mappings
2017-01-09 09:26:26.263  INFO 80996 --- [           main] c.v.s.b.i.VaadinServletConfiguration     : Registering Vaadin servlet of type [com.vaadin.spring.server.SpringVaadinServlet]
2017-01-09 09:26:26.273  INFO 80996 --- [           main] c.v.s.b.i.VaadinServletConfiguration     : Forwarding @SpringUI URLs from {/admin/*=org.springframework.web.servlet.mvc.ServletForwardingController@6fc3f1a7, /pages/*=org.springframework.web.servlet.mvc.ServletForwardingController@6fc3f1a7, /dashboard/*=org.springframework.web.servlet.mvc.ServletForwardingController@6fc3f1a7, /admin/*/=org.springframework.web.servlet.mvc.ServletForwardingController@6fc3f1a7, /dashboard/*/=org.springframework.web.servlet.mvc.ServletForwardingController@6fc3f1a7, /pages/*/=org.springframework.web.servlet.mvc.ServletForwardingController@6fc3f1a7}
2017-01-09 09:26:26.283  INFO 80996 --- [           main] c.v.spring.navigator.SpringViewProvider  : Looking up SpringViews
2017-01-09 09:26:26.288  INFO 80996 --- [           main] c.v.spring.navigator.SpringViewProvider  : 18 SpringViews found
2017-01-09 09:26:26.858  INFO 80996 --- [           main] com.web.Application   : Started Application in 26.671 seconds (JVM running for 27.124)

2017-01-09 09:26:32.916  WARN 80996 --- [  XNIO-2 task-1] c.v.s.DefaultDeploymentConfiguration     :
=================================================================
Vaadin is running in DEBUG MODE.
Add productionMode=true to web.xml to disable debug features.
To show debug window, add ?debug to your application URL.
=================================================================
2017-01-09 09:26:35.613  INFO 80996 --- [  XNIO-2 task-2] c.vaadin.spring.server.SpringUIProvider  : Checking the application context for Vaadin UIs
2017-01-09 09:26:35.615  INFO 80996 --- [  XNIO-2 task-2] c.vaadin.spring.server.SpringUIProvider  : Found Vaadin UI [com.web.ui.AdminUI]
2017-01-09 09:26:35.616  INFO 80996 --- [  XNIO-2 task-2] c.vaadin.spring.server.SpringUIProvider  : Found Vaadin UI [com.web.ui.DashboardUI]
2017-01-09 09:26:35.616  INFO 80996 --- [  XNIO-2 task-2] c.vaadin.spring.server.SpringUIProvider  : Found Vaadin UI [com.web.ui.PagesUI]
2017-01-09 09:26:35.616  WARN 80996 --- [  XNIO-2 task-2] c.vaadin.spring.server.SpringUIProvider  : Found no Vaadin UIs in the application context
2017-01-09 09:26:36.737  INFO 80996 --- [  XNIO-2 task-8] c.vaadin.spring.server.SpringUIProvider  : Checking the application context for Vaadin UIs
2017-01-09 09:26:36.740  INFO 80996 --- [  XNIO-2 task-8] c.vaadin.spring.server.SpringUIProvider  : Found Vaadin UI [com.web.ui.AdminUI]
2017-01-09 09:26:36.740  INFO 80996 --- [  XNIO-2 task-8] c.vaadin.spring.server.SpringUIProvider  : Found Vaadin UI [com.web.ui.DashboardUI]
2017-01-09 09:26:36.740  INFO 80996 --- [  XNIO-2 task-8] c.vaadin.spring.server.SpringUIProvider  : Found Vaadin UI [com.web.ui.PagesUI]
2017-01-09 09:26:36.740  WARN 80996 --- [  XNIO-2 task-8] c.vaadin.spring.server.SpringUIProvider  : Found no Vaadin UIs in the application context

@Bean(name = "springBootServletRegistrationBean")
    public ServletRegistrationBean servletRegistrationBean() {
        SpringVaadinServlet servlet = new SpringVaadinServlet() {

            @Override
            protected VaadinServletService createServletService(DeploymentConfiguration deploymentConfiguration) throws ServiceException {
                SpringVaadinServletService service = new SpringVaadinServletService(this, deploymentConfiguration, null) {
...