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(I'm not sure exactly how to phrase the title here, and because of that I'm not really sure how to go about searching for the answer either.) I have a Java servlet engine that handles requests. Say we have a doGet() request: public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { //set up user data //do whatever the user requested SomeClass c = new SomeClass(); c.doSomething(); } Now in doSomething() , I want to be able to access which user made the request. Right now I'm doing it by creating a Java object within the method and passing it to wherever I need it: public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { //set up user data MyUserObj userObj = new MyUserObj(); userObj.setId('123'); //do whatever the user requested SomeClass c = new SomeClass(userObj); c.doSomething(); } By doing this, I have access to the instance of MyUserObj , and it can be further passed along in the application as needed. I know in ASP.NET MVC3 I can acheive this by storing items/attributes for the current thread like this: HttpContext.Current.Items.Add("myId", "123") . HttpContext is then available in other functions without explicitly having to pass around an object. Is there a way in Java to set some variables per request (or even set the MyUserObject to be accessed later) without passing the object through as a parameter?

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