Question

Suppose I have a static method in a class like so:

public static String getSomething(HttpServletRequest request)

Which, in the method, calls request.getHeader(“headerName”) and request.getParameter(“parameterName”).

Also, In a Struts 2 Action , I make a call to this function within execute():

private String theString;

public String execute() throws Exception {
    theString = TheClass.getSomething(ServletActionContext.getRequest());
    ....
    ....
}

Assuming I make no modifications to the request objection in my static getSomething(request) function, is this thread safe? I’m guessing yes, since from what I understand the HttpServletRequest object in an action is thread local, but I’m not 100% sure.

Answer 1

Yes, it’s totally thread safe as all the variables are only referenced from the stack.