Boolean attribute generates undefined "validationMessageCode" attribute for web mvc

[md10024]

When a jpa entity with a Boolean has a web mvc scaffold generated then the field:checkbox jspx file has a "validationMessageCode" attribute that is undefined

The jspx

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<div xmlns:c="http://java.sun.com/jsp/jstl/core"
	xmlns:field="urn:jsptagdir:/WEB-INF/tags/form/fields"
	xmlns:form="urn:jsptagdir:/WEB-INF/tags/form"
	xmlns:jsp="http://java.sun.com/JSP/Page"
	xmlns:spring="http://www.springframework.org/tags" version="2.0">
	<jsp:directive.page contentType="text/html;charset=UTF-8" />
	<jsp:output omit-xml-declaration="yes" />
	<form:create id="fc_com_kn_core_domain_KnEmailSource"
		modelAttribute="knEmailSource" path="/email"
		render="${empty dependencies}" z="dTLrpRuDVRJ5mrhIoIgQCZ2vM88=">		

      <field:checkbox field="emailAllowed"
	id="c_com_kn_core_domain_KnEmailSource_emailAllowed"
	validationMessageCode="field_invalid_email"
	z="wTN+Jq4iS1yreKGSzQx31kMngEI=" />
...

The Java attribute:

@RooJavaBean
@RooToString
@Buildable
@RooJpaActiveRecord
public class KnEmailAccount {    
     private Boolean emailAllowed;
}

The runtime error...

Nov 29, 2011 11:27:46 PM org.apache.catalina.core.ApplicationDispatcher invoke
SEVERE: Servlet.service() for servlet jsp threw exception
org.apache.jasper.JasperException: /WEB-INF/views/email/create.jspx(10,182) Attribute validationMessageCode invalid for tag checkbox according to TLD
	at org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:40)
	at org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:407)
	at org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:236)
	at org.apache.jasper.compiler.Validator$ValidateVisitor.checkXmlAttributes(Validator.java:1235)
	at org.apache

Of course, removing validationMessageCode="field_invalid_email" is the workaround

I figure this is a bug, I'll open a JIRA issue if somebody can confirm it.

thanks,

Mark

[Andrew Swan]

Logged as ROO-2957; please continue the discussion there.