WebAppContext: Web Application ContextHandler
configurationClasses: Array of names of configuration classes 
defaultsDescriptor: Default web.xml descriptor applied before standard web.xml
overrideDescriptor: Override web.xml descriptor applied after standard web.xml
serverClasses: Classes and packages hidden by the context classloader
systemClasses: Classes and packages given priority by context classloader
war: WAR file location
distributable: Is the web application distributable
extractWAR: Is the war file extraced on deploy
copyWebDir: Is the web application directory copied on deploy
parentLoaderPriority: Is the parent classloader given priority
descriptor: The standard web.xml descriptor
extraClasspath: Extra classpath for the context classloader
tempDirectory: Temporary directory location