DWR

I have a remoted class (TextBlockAjaxActions) that implements a generic abstract
method with a concrete type.

When the webapp starts, dwr reports:
    BaseCallMarshaller - Warning multiple matching methods. Using first match.

When I look at the class' getMethods(), I can find two edit() methods:
    public volatile Block TextBlockAjaxActions.edit(Integer)
    public TextBlock TextBlockAjaxActions.edit(Integer)

I suspect that DWR is passing the abstract Method object to the
AjaxFilter chain instead of the concrete implementation. I have an
AjaxFilter (TemplateFilter) that looks at the Method object for the
@Template annotation but can not find it because it has not been passed
the concrete Method object.


Code
------------------
public abstract class AbstractBlockAjaxActions<T extends Block> {
    public abstract T view(Integer itemId);
}

@RemoteProxy(
    creatorParams=@Param(name="javascript",value="TextBlockAjaxActions"),
    scope=ScriptScope.APPLICATION
)
@Filter(type=TemplateFilter.class)
public class TextBlockAjaxActions extends
AbstractBlockAjaxActions<TextBlock> {
    @Override
    @RemoteMethod

@Template(path="/WEB-INF/jsp/issues/iur/textBlockAjaxActions.view.jsp",var="text")
    public TextBlock view(Integer itemId) {
         // implementation
    }
}
------------------

As a workaround for this I use the following method in my AjaxFilter

------------------

    private Method findConcreteImplementation(Object obj, Method method) {
      if (Modifier.isVolatile(method.getModifiers())) {
         Class clazz = obj == null ? method.getDeclaringClass() : obj.getClass();
          Method[] methods = clazz.getMethods();
          List<Method> options = new ArrayList<Method>();
          for (Method current : methods) {
            if (current.getName().equals(method.getName())) {
               if (Modifier.isVolatile(current.getModifiers()) == false) {
                  options.add(current);
               }
            }
         }
          if (options.size() == 1) {
             method = options.get(0);
          } else {
             throw new IllegalStateException("Could not find non-volatile implmentation of " + method.getName() + " in " + clazz.getName());
          }
       }
      return method;
   }