https://docs.spring.io/spring-framework/docs/3.0.6.RELEASE_to_3.1.0.BUILD-SNAPSHOT/3.0.6.RELEASE/org/springframework/web/context/support/XmlWebApplicationContext.html
XmlWebApplicationContext
https://docs.spring.io/spring-framework/docs/4.1.1.RELEASE/javadoc-api/org/springframework/web/context/support/XmlWebApplicationContext.html
XmlWebApplicationContext (Spring Framework 4.1.1.RELEASE API)
spring frameworkreleaseapi