org.springframework.web.util
Classes 
CookieGenerator
ExpressionEvaluationUtils
HtmlCharacterEntityDecoder
HtmlCharacterEntityReferences
HtmlUtils
HttpSessionMutexListener
IntrospectorCleanupListener
JavaScriptUtils
Log4jConfigListener
Log4jConfigServlet
Log4jWebConfigurer
TagUtils
UrlPathHelper
WebAppRootListener
WebUtils
Exceptions 
NestedServletException