How to find servlet API version for glassfish server?

Question

While coding a servlet I found a method that says

Since:
    Servlet 3.1

I guess that if I have the autohint from NetBeans to use it is bec

Answer 1

First, take a look to Comparing GlassFish Open Source Edition versions 2.x and 3.0.x. Also in your servlet you can add

HttpSession session = request.getSession();
int majorVersion = session.getServletContext().getMajorVersion();
int minorVersion = session.getServletContext().getMinorVersion();