Trouble calling methods in a Struts 2 action

I'm just starting to use FreeMarker (2.3.15) with Struts 2.1.8.  It 
mostly works great: my templates are retrieving bean information with no 
problem.  However, I can't figure out how to call methods defined in my 
action classes -- in fact I have no idea why it isn't working as I expected.

If my action class looks like this:

public class MyAction extends MyActionSupport {
    public String getMyValue() {
       return "hello";
    }
    public String myMethod() {
       return "world";
    }
}

then ${myValue} or ${myValue.toUpperCase()} works fine, as does 
<@s.property value="myMethod()"/>, but ${myMethod()}results in a 
"Expression myMethod is undefined" error.  The docs 
(http://freemarker.org/docs/dgui_template_exp.html#dgui_template_exp_methodcall) 
seem to think this should be perfectly fine, as far as I can tell.

Any idea why Freemarker isn't seeing the top-level action methods unless 
I use <@s.property>?

Thanks for any help -
Chris


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