Grailsを0.5.6にあげたら...

Grails 0.5 + Wicket Plugin 0.1 の環境を Grails 0.5.6 + Wicket Plugin 0.1 にあげたら、

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'grailsUrlMappingsHolder': Invocation of init method failed; nested exception is org.codehaus.groovy.runtime.InvokerInvocationException: org.codehaus.groovy.grails.validation.exceptions.ConstraintException: Exception thrown applying constraint [notEqual] to class [interface org.codehaus.groovy.grails.web.mapping.UrlMapping] for value [app]: null

と例外発生...orz

仕方ないので、UrlMappingクラスを

class XyzUrlMappings {
    static mappings = {
        "/$controller/$action?/$id?" {
            constraints {
                controller( notEqual : "app" )
            }
        }
    }
}

から

class XyzUrlMappings {
    static mappings = {
        "/xyz/$action?/$id?" {
            controller = "xyz"
        }
    }
}

に変更してしのいでいます...orz