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From "Artur Ashyrov (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CXF-4113) Header fields duplication in generated wsdl file when using aegis databinding
Date Wed, 15 Feb 2012 16:12:59 GMT
Header fields duplication in generated wsdl file when using aegis databinding
-----------------------------------------------------------------------------

                 Key: CXF-4113
                 URL: https://issues.apache.org/jira/browse/CXF-4113
             Project: CXF
          Issue Type: Bug
          Components: Aegis Databinding, JAX-WS Runtime
    Affects Versions: 2.5, 2.4
            Reporter: Artur Ashyrov


CXF generates invalid wsdl for jax-ws annotated interfaces when using aegis databinding. 

Problem is in generating schema for methods which have parameters annotated with @WebParam(
name='...', header=true).
Such parameters are being duplicated in generated wsdl. For example:
{code}
...
  <xsd:element name="buggyWsdlDef" type="buggyWsdlDef"/>
  <xsd:complexType name="buggyWsdlDef">
    <xsd:sequence>
      <xsd:element minOccurs="0" name="userName" nillable="true" type="xsd:string"/>
    </xsd:sequence>
  </xsd:complexType>
  <xsd:element name="firstHeader" type="xsd:int"/>
  <xsd:element name="secondHeader" type="xsd:string"/>
  <xsd:element name="firstHeader" nillable="true" type="xsd:int"/>
  <xsd:element name="secondHeader" nillable="true" type="xsd:string"/>
  <xsd:element name="buggyWsdlDefResponse" type="buggyWsdlDefResponse"/>
...
{code}
This causes some clients totally not to work with such web service(soap ui doesn't complain
somewhy). 
Eclipse wsdl validator gives me this error:
"A schema cannot contain two global components with the same name; this schema contains two
occurrences of 'http://service.common.example.com/,firstHeader'.

My investigation shows that:
1. This problem appears only when using aegis databinding.
2. This bug presented in versions which are >= 2.4.0 (last version without this bug is
2.3.9)
3. This happens only in wsdl that is being generated for importing through wsdl:import directive.

In my case original wsdl is <ws-url>/service?wsdl and one that is imported is <ws-url>/service?wsdl=ExampleService.wsdl
4. Debugging shows that problem is probably in ReflectionServiceFactoryBean. When service
is starting, next chain of methods is called: buildServiceFromClass->...initializeParameter[many
times]->...initializeWrappedSchema[many times]

initializeWrappedSchema method calls checkForElement(...) which adds duplications for header
parameters in service object model(ServiceInfo instance).
Not sure why exactly this happens but hope that it will help you at least locate the problem.

I'm attaching maven project which demonstrates this problem.

In order to reproduce this bug using sample project attached:
1. "mvn jetty:run" in project directory
2. Open localhost:8080/CXFExampleService/service?wsdl=ExampleService.wsdl in the browser

Search for '<xsd:complexType name="buggyWsdlDef">' occurence in that wsdl.

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