java.lang.IllegalArgumentException: Name for argument type [java.lang.String] not available, and p

java.lang.IllegalArgumentException: Name for argument type [java.lang.String]  
not available, and parameter name information not found in class file either. 

@RequestMapping(value = "/security/login", method = RequestMethod.POST)public ModelAndView login(@RequestParam String userName, @RequestParam String password,     HttpServletRequest request) {    ......................

Argument names are stored in the compiled code only when it's compiled in debug mode, 
so you should either compile it in debug mode or supply @RequestParam with explicit parameter names. 
The latter approach is more reliable because it doesn't depend on the environment:

@RequestMapping(value = "/security/login", method = RequestMethod.POST) public ModelAndView login(@RequestParam("userName") String userName,     @RequestParam("password") String password,      HttpServletRequest request) {     ......................

https://stackoverflow.com/questions/2622018/compile-classfile-issue-in-spring-3