Jasper plugin. Passing additional parameter

[Serg Mazurok]

Could someone provide the example how to pass parameters from Struts2 
action to Jasper report?

I have created simple Jasper report based on Struts tutorial. Then I had 
modified this example in order to use parameter within Jasper report.
Jasper report JRXML file:
/    <parameter name="test" isForPrompting="true" class="java.lang.String"/>
/Action:
/        public String getTest(){
           return "test";
       }/

But this solution doesn't work. On the report I got 'null' instead of 
parameter value.
Could someone give me the point what's wrong with this example?

Any help is appreciated.

Best Regards

--
Serg