Spring "typemismatch" and required fields

Question

Hi,

In the context of Spring Webflow 2.0.x......

I handle form binding "typemismatches", i.e. as a result of trying to map a String onto a Integer field, by using the following in my messages.properties

typeMismatch={0} contains invalid data.

This works fine.

The problem is that if the field that the typeMismatch error occurred on was "required" then I also receive an error for the missing required field, which is logical I guess because the value that was submitted was never bound. ("Required" being defined in a Commons Validation XML file)

So, I dont want to see the "XXX is required field" error message when the field is only missing due to the typeMismatch. How do I resolve this? I thought about overriding initBinder() on the FormAction but quickly got nowhere.....