Struts declarative ExceptionHandling

Does anyone have an example of how declarative exception handling in Struts
works?  I have am throwing a java.SQL.SQLException in my Action class and
have the following defined in my struts-config.xml <global-exceptions>

                                                            <exception
type="java.SQL.SQLException" key="application.error"
handler="gov.co.state.cac.util.CACExceptionHandler"/>

 
</global-exceptions>

However, this handler never gets called to handle the exception.  I am not
sure what I am doing wrong.

 

Thanks,

Chad