Your question has me a little lost. If validation fails (your own validate method on the form or using the validator framework) then flow will be forward to your input attribute. In your case, it is a
jsp file, so no action should be executed. You could set your input attribute to "/PrepearPayment.do" in which case that action will be called.
BTW...it looks like you have a little typo in PrepearPayment...should be PreparePayment but that does not make a difference.
- Brent