App Engine Spring servlet config

web.xml

<?xml version="1.0" encoding="utf-8"?>
<web-app version="3.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd">

    <servlet>
        <servlet-name>appengine-spring-boot</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextClass</param-name>
            <param-value>org.springframework.web.context.support.AnnotationConfigWebApplicationContext</param-value>
        </init-param>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>com.realkinetic.gaeplayground.GaePlaygroundApplication</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <!-- Let Spring MVC handle every URL -->
    <servlet-mapping>
        <servlet-name>appengine-spring-boot</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

</web-app>