Java EE (Java Enterprise Edition) General Discussion

I have bean:

Public class User
{
   private String name;

   public User () { name = "";}
   public User (String name) {this.name = name;}
}

in my Servlet, I create and initialized an instance of User, say user,
and add it as an attribute of session:

session.setAttribute ("user", user);

in my jsp, I want to print out the user's name, like this:

<c:if test = "${!empty sessionScope.user}">
   welcome ${sessionScope.user.name}
</c:if>

and when try to access this jsp, i got the following exception:

exception:
javax.servlet.ServletException: Unable to find a value for "name" in object of class "User" using operator "."

root cause:
javax.servlet.jsp.el.ELException: Unable to find a value for "name" in object of class "User" using operator "."

If I change the EL expression to expression like:

welcome

<%=((User)session.getAttribute ("user")).getName ()%>

it works fine!

Please help, and thanks in advance!