A couple of things were causing the problem. I realized that the weird prefix seems to be caused by having my variable markers enclosed by single quotes '{0}' instead of double quotes "{0}". The second thing is that I needed to have the message-bundle entry in the faces config. Finally, I had to override the default validator message keys/values in my message file. So my faces.config now looks like: | | <application> | <message-bundle>mypackagename.application</message-bundle> | </application> | | <application> | <resource-bundle> | <base-name>mypackagename.application</base-name> | <var>msgs</var> | </resource-bundle> | </application> | | And the message file looks like: | | javax.faces.component.UIInput.CONVERSION=Invalid entry, not the correct data type | javax.faces.component.UIInput.REQUIRED=Value is required | javax.faces.component.UISelectOne.INVALID=Value is not a valid option | javax.faces.component.UISelectMany.INVALID=Value(s) are not a valid selection | javax.faces.validator.NOT_IN_RANGE=Specified attribute is not between the expected values of "{0}" and "{1}" | javax.faces.validator.DoubleRangeValidator.MAXIMUM=Value is greater than allowable maximum of "{0}" | javax.faces.validator.DoubleRangeValidator.MINIMUM=Value is less than allowable minimum of "{0}" | javax.faces.validator.DoubleRangeValidator.TYPE=Value is not of the correct type | javax.faces.validator.LengthValidator.MAXIMUM=Value is greater than allowable maximum of "{0}" | javax.faces.validator.LengthValidator.MINIMUM=Value is less than allowable minimum of "{0}" | javax.faces.validator.LongRangeValidator.MAXIMUM=Value is greater than allowable maximum of "{0}" | javax.faces.validator.LongRangeValidator.MINIMUM=Value is less than allowable minimum of "{0}" | javax.faces.validator.LongRangeValidator.TYPE=Value is not of the correct type | formField1Label=Form Field 1: | formField2Label=Form Field 2: | formField3Label=Form Field 3: | formField4Label=Form Field 4: | | View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4134910#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...