Can two radio tags be used to set boolean values for a form property in struts?

I'm new-ish to struts and I'm particularly s开发者_开发知识库tuck on an area of struts code which has to do with the radio button. No matter what I do I can't get anything but a false value from the following: (CostForm)

<td align="left" width="200px" colspan="2">
    <html:radio property="responsableBool" value="false"/>No
    <html:radio property="responsableBool" value="true"/>Yes
</td>

It is then initialised from this piece of code:

CostForm costform = (CostForm) form;
Cost cost = new Cost();
costform.populateModel(cost);

and the populateModel just has: PropertyUtils.copyProperties(cost,this);

The only thing I can think of is that struts doesn't allow the radio buttons to reference the same property with different values.

Given the form:

public class CostForm extends ActionForm {
    private boolean responsableBool; // And getter/setter
}

The HTML:

<html:form action="/costsub">
    <html:radio property="responsableBool" value="false"/>No
    <html:radio property="responsableBool" value="true"/>Yes
    <html:submit/>
</html:form>

The action:

public ActionForward execute([args elided]) throws Exception {
    CostForm costForm = (CostForm) form;
    System.out.println(costForm.isResponsableBool());
    // etc.

When I click "No" and "Yes" I get the expected boolean value inside the action.

I'd double-check things like spelling (the English spelling would be "responsible"; perhaps it's spelled correctly in Cost?), action/form mismatches (are you using the right form "name" in the action mapping?), and so on.