I am using WSAD 5.1.1 and I am using the struts configuration file validator
Windows>Preferences>Validation>Struts Configuration File Validator

and I am getting a bogus error indicating that my customized action forward must be a subclass of org.apache.struts.actin.ActionForward (obviously this needs to be org.apache.struts.action.ActionForward)
This is obviously a typo config file validator but I can figure out what controller or feature does this validation and thus how I can fix this.