[jboss-user] [JBossWS] - JAXB error when using different derived types in the same co

javaslag do-not-reply at jboss.com
Wed Feb 21 06:42:01 EST 2007


I have what seems to be a correct piece of SOAP being sent to JBossWS 1.0.4 that causes a binding exception.  This only occurs when I send 2 different sub-class/derived types in the same container type.  Sending each type independently (or several instances of the same type) works fine.

In my example I have a Transaction type that contains an unbound number of Atoms, where Atom is an abstract type.  There are 2 derivative of Atom, AtomType1 and AtomType2 which each extend Atom and add an additional sub-element element unique to the specialised type.

(You can assume the namespaces/jax-rpc mapping is correct as when used independently from each other, the derived types bind fine.)

My Types...


  | <complexType abstract="true" name="Atom">
  |  <sequence>
  |   <element name="atom_id" type="nonNegativeInteger" /> 
  |   <element name="name" nillable="true" type="string" /> 
  |   </sequence>
  | </complexType>
  | 
  | <complexType name="Transaction">
  |   <sequence>
  |     <element maxOccurs="unbounded" name="atom" type="myns:Atom" /> 
  |   </sequence>
  | </complexType>
  | 
  | 
  | <complexType name="AtomType1">
  |   <complexContent>
  |     <extension base="myns:Atom">
  |       <sequence>
  |        <element name="atom_type_1_value" type="unsignedLong" /> 
  |       </sequence>
  |     </extension>
  |   </complexContent>
  | </complexType>
  | 
  | <complexType name="AtomType2">
  |   <complexContent>
  |     <extension base="myns:Atom">
  |       <sequence>
  |        <element name="atom_type_2_value" type="unsignedLong" /> 
  |       </sequence>
  |     </extension>
  |   </complexContent>
  | </complexType>



First example which is processed fine, and proves the type is bound correctly.  Single Atom in the Transaction

                   <?xml version="1.0" encoding="UTF-8"?>
  |             <env:Envelope 
  | 				xmlns:env="http://schemas.xmlsoap.org/soap/envelope/" 
  | 				xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
  | 				xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
  | 				xmlns:enc="http://schemas.xmlsoap.org/soap/encoding/" 
  | 				xmlns:ns0="http://mynamespace">
  | 				
  |                <env:Body>
  |                   <ns0:update>
  |                      <Transaction_1>
  |                         
  |                         <atom xmlns:ans1="http://mynamespace" xsi:type="ans1:AtomType2">
  |                            <atom_id>1</atom_id>
  |                            <name>myName2</name>
  |                            <atom_type_2_value>2</atom_type_2_value>
  |                         </atom>
  |                         
  |                      </Transaction_1>
  |                   </ns0:update>
  |                </env:Body>
  |             </env:Envelope>


The next Transaction contains 2 different Atom derived types, and fails processing with this exception
Error: anonymous wrote : org.jboss.ws.binding.BindingException: org.jboss.ws.jbossxb.UnmarshalException: Failed to parse source: Requested element atom_type_2_value is not allowed in this position in the sequence. A model group with minOccurs=1 that doesn't contain this element must follow.

       <?xml version="1.0" encoding="UTF-8"?>
  |             <env:Envelope 
  | 				xmlns:env="http://schemas.xmlsoap.org/soap/envelope/" 
  | 				xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
  | 				xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
  | 				xmlns:enc="http://schemas.xmlsoap.org/soap/encoding/" 
  | 				xmlns:ns0="http://mynamespace">
  | 				
  |                <env:Body>
  |                   <ns0:update>
  |                      <Transaction_1>
  |                         
  |                         <atom xmlns:ans1="http://mynamespace" xsi:type="ans1:AtomType1">
  |                            <atom_id>1</atom_id>
  |                            <name>myName</name>
  |                            <atom_type_1_value>2</atom_type_1_value>
  |                         </atom>
  |                         
  |                         <atom xmlns:ans1="http://mynamespace" xsi:type="ans1:AtomType2">
  |                            <atom_id>2</atom_id>
  |                            <name>myName2</name>
  |                            <atom_type_2_value>2</atom_type_2_value>
  |                         </atom>
  |                         
  |                      </Transaction_1>
  |                   </ns0:update>
  |                </env:Body>
  |             </env:Envelope>



Just for a test, I switched the order of the Atoms in the transaction and note that the binding exception is now accredited to the other derived type

Error: anonymous wrote : org.jboss.ws.binding.BindingException: org.jboss.ws.jbossxb.UnmarshalException: Failed to parse source: Requested element atom_type_1_value is not allowed in this position in the sequence. A model group with minOccurs=1 that doesn't contain this element must follow.


            <?xml version="1.0" encoding="UTF-8"?>
  |             <env:Envelope 
  | 				xmlns:env="http://schemas.xmlsoap.org/soap/envelope/" 
  | 				xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
  | 				xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
  | 				xmlns:enc="http://schemas.xmlsoap.org/soap/encoding/" 
  | 				xmlns:ns0="http://mynamespace">
  | 				
  |                <env:Body>
  |                   <ns0:update>
  |                      <Transaction_1>
  |                         
  |                         <atom xmlns:ans1="http://mynamespace" xsi:type="ans1:AtomType2">
  |                            <atom_id>1</atom_id>
  |                            <name>myName</name>
  |                            <atom_type_1_value>2</atom_type_1_value>
  |                         </atom>
  |                         
  |                         <atom xmlns:ans1="http://mynamespace" xsi:type="ans1:AtomType1">
  |                            <atom_id>2</atom_id>
  |                            <name>myName2</name>
  |                            <atom_type_2_value>2</atom_type_2_value>
  |                         </atom>
  |                         
  |                      </Transaction_1>
  |                   </ns0:update>
  |                </env:Body>
  |             </env:Envelope>



The final Transaction contains 2 atoms of the same derived type - and is processed fine.

            <?xml version="1.0" encoding="UTF-8"?>
  |             <env:Envelope 
  | 				xmlns:env="http://schemas.xmlsoap.org/soap/envelope/" 
  | 				xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
  | 				xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
  | 				xmlns:enc="http://schemas.xmlsoap.org/soap/encoding/" 
  | 				xmlns:ns0="http://mynamespace">
  | 				
  |                <env:Body>
  |                   <ns0:update>
  |                      <Transaction_1>
  |                         
  |                         <atom xmlns:ans1="http://mynamespace" xsi:type="ans1:AtomType1">
  |                            <atom_id>1</atom_id>
  |                            <name>myName</name>
  |                            <atom_type_1_value>2</atom_type_1_value>
  |                         </atom>
  |                         
  |                         <atom xmlns:ans1="http://mynamespace" xsi:type="ans1:AtomType1">
  |                            <atom_id>2</atom_id>
  |                            <name>myName2</name>
  |                            <atom_type_2_value>2</atom_type_2_value>
  |                         </atom>
  |                         
  |                      </Transaction_1>
  |                   </ns0:update>
  |                </env:Body>
  |             </env:Envelope>



Worth raising a bug?

Regards - J

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