title: Field Names for Struts2 map entries in a JSP
body: <p>I want to populate a map property on a Struts2 action from a JSP. What is the format of the data names that I should use? Initially I am interested in populating a Map&lt;String, String> but in the future I would be interesting in populating a Map&lt;String, DomainClass> where the DomainClass has properties of its own.</p>