I had a similar question: I have a WSDL operation which is based on a XML schema with the following info: <xs:element name="CheckInDate"> <xs:annotation> <xs:documentation>CheckInDate: YYMMDD</xs:documentation> </xs:annotation> <xs:simpleType> <xs:restriction base="xs:string"> <xs:length value="6"/> <xs:pattern value="\d\d\d\d\d\d"/> </xs:restriction> </xs:simpleType> </xs:element> <xs:element name="FolioID"> <xs:simpleType> <xs:restriction base="xs:string"> <xs:minLength value="0"/> <xs:maxLength value="25"/> </xs:restriction> </xs:simpleType> </xs:element> Couple of questions around this schema: 1. Does JBossWS framework understand the xml schema constraints of xs:minLength, xs:maxLength and xs:pattern, if specified? 2. What kind of error (Soap or otherwise) does the JBossWS framework throw or report to the WS-Client, if minLength, maxLength and pattern constraints are violated.? 3. If not, do I need to do a validation around these constraints in my code and throw a wsdl 'validation error' fault. Thanks in Advance! View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4175988#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...