How to update the SecurityContextHolder username for the update for current user

Question

In my application when the current logged in user's usernam is changed i want to update the UserDetails principal for the current user. How can I do that? I'm getting the current username by following method : public UserDetails getSystemUser(){ try { UserDetails principal = (UserDetails) SecurityContextHolder.getContext().getAuthentication().getPrincipal(); return principal; }catch (ClassCastException e){ return null; } } JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

To my knowledge there is no setusername method for this. Keep in mind this solution is untested it might or not work. So first clearcontext. Then create a new empty context and set the newly created authentication object with the updated username and all OTHER INFO needed. @ 'newusername' you should set your new updated username string or your customuserdetails object with your new updated username and all other info. Authentication oldAuthenticationObject = SecurityContextHolder.getContext().getAuthentication(); SecurityContextHolder.clearContext(); SecurityContext context = SecurityContextHolder.createEmptyContext(); UsernamePasswordAuthenticationToken authentication = new UsernamePasswordAuthenticationToken( NEWUSERNAME, null, oldAuthenticationObject.getAuthorities()); context.setAuthentication(authentication); SecurityContextHolder.setContext(context);