RE: Problem with empty tags

From: [email protected]
To: [email protected]
Subject: Problem with empty tags
Date: Wed, 3 Dec 2014 10:47:23 +0000









Hi



I am having a problem with a generated client from a WSDL.
I am using Apache Axis2/Java 1.6.2



We are communicating with a SOAP Service which is returning the following XML structure:

               <Skjerming>
                  <Kode>
                     <Navn>U</Navn>
                     <Beskrivelse>Ugradert</Beskrivelse>
                     <Hjemmel/>
                  </Kode>
               </Skjerming>


MG>take a look at this ResponseType

   <xs:complexType name="ResponseType">
        <xs:sequence>
            <xs:element name="integer1" type="xs:unsignedInt"/>
            <xs:element name="integer2" type="xs:unsignedInt"/>
        </xs:sequence>
    </xs:complexType>
 <!-- the endtag for xs:complexType is here -->
<!-- we may now reference the tag ResponseType in further declarations -->
 
    <xs:complexType name="UpdateResponseType">
        <xs:complexContent>
<!-- this declaration says for my current UpdateResponseType tag i will extend from predefined ResponseType -->
<!-- the parser has already parsed ResponseType so any tags downstream will be able to extend from it as seen here -->
            <xs:extension base="def:ResponseType">
                <xs:choice>
                    <xs:element name="updateResponseChoice" type="xs:unsignedInt"/>
                    <xs:element name="updateResponseChoice2" type="xs:unsignedInt"/>
                </xs:choice>
            </xs:extension>
        </xs:complexContent>
    </xs:complexType>
MG>

MG>your definition of the 2 responseTypes are jumbled together so the parser is unable to make the distinction between
MG>HjemmelResponseType and  SkjermingskodeResponseType



The tag named Hjemmel is causing AXIS2 problems. I get a ADBException: Unexpected subelement



The XSD describes the tag like this:




<xsd:complexType name="SkjermingskodeResponseType">
  <xsd:annotation>
    <xsd:documentation>Type som inneholder informasjon om skjermingskode ved response</xsd:documentation>
  </xsd:annotation>
  <xsd:sequence>
    <xsd:element name="Navn" type="cct:navn">
      <xsd:annotation>
        <xsd:documentation>Angir navnet på skjermingskoden.</xsd:documentation>
      </xsd:annotation>
    </xsd:element>
    <xsd:element name="Beskrivelse" type="cct:tekst">
      <xsd:annotation>
        <xsd:documentation>Beskrivelse av avskjermingskoden.</xsd:documentation>
      </xsd:annotation>
    </xsd:element>
    <xsd:element name="Hjemmel" type="HjemmelResponseType">
      <xsd:annotation>
        <xsd:documentation>Angir hjemmel som skal benyttes.</xsd:documentation>
      </xsd:annotation>
    </xsd:element>
  </xsd:sequence>
</xsd:complexType>



<xsd:complexType name="HjemmelResponseType">
  <xsd:annotation>
    <xsd:documentation>Type som inneholder informasjon om en skjermingshjemmel ved response</xsd:documentation>
  </xsd:annotation>
  <xsd:sequence>
    <xsd:element name="Navn" type="cct:navn">
      <xsd:annotation>
        <xsd:documentation>Angir navnet på hjemmelen.</xsd:documentation>
      </xsd:annotation>
    </xsd:element>
    <xsd:element name="Beskrivelse" type="cct:tekst">
      <xsd:annotation>
        <xsd:documentation>Beskrivelse av hjemmel.</xsd:documentation>
      </xsd:annotation>
    </xsd:element>
  </xsd:sequence>
</xsd:complexType>



If i mock the SOAP Service and replaces the <Hjemmel/> tag with the following XML everything works ok:




               <Skjerming>
                  <Kode>
                     <Navn>U</Navn>
                     <Beskrivelse>Ugradert</Beskrivelse>

MG>Here your new tag Hjemmel is being declared with no extensions or relationships to other tags

                     <Hjemmel>
                     
 <Navn>A</Navn>
                     
 <Beskrivelse>AAA</Beskrivelse>
                     </Hjemmel>
MG>end tag Hjemmel


                  </Kode>
               </Skjerming>









Is there a way to be able to handle empty elements on the form <tag/> as a client using axis2?
Both for subtrees and for leaf-elements? If I put in a <tag/> for a leaf I get a Nullpointerexception because AXIS2 fails with toString on this element.



Best Regards,



Tomas Andersen

Senior Consultant

+47 91 87 32 77






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