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From "Trent Bartlem (JIRA)" <j...@apache.org>
Subject [jira] Commented: (AXIS2-4252) Axis2-xmlbean stub doesn't set exception.message on custom soap faults
Date Wed, 25 Feb 2009 04:59:04 GMT

    [ https://issues.apache.org/jira/browse/AXIS2-4252?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12676503#action_12676503
] 

Trent Bartlem commented on AXIS2-4252:
--------------------------------------

er,

 exceptionClass.getConstructor(String.class).newInstance(f.getMessage())

should be

exceptionClass.getConstructor(new Class[]{String.class}).newInstance(new Object[]{f.getMessage()})

for pre-Java 5 implementation

> Axis2-xmlbean stub doesn't set exception.message on custom soap faults
> ----------------------------------------------------------------------
>
>                 Key: AXIS2-4252
>                 URL: https://issues.apache.org/jira/browse/AXIS2-4252
>             Project: Axis 2.0 (Axis2)
>          Issue Type: Improvement
>          Components: client-api, codegen, databinding
>    Affects Versions: 1.4.1
>         Environment: Linux
>            Reporter: Trent Bartlem
>            Priority: Minor
>   Original Estimate: 2h
>  Remaining Estimate: 2h
>
> Axis2 provides implementation subclasses of org.apache.axis2.client.Stub when it generates
from WSDL.
> An example WSDL snippet would be:
>     <wsdl:operation name="quote" parameterOrder="booking">
>       <wsdl:input name="quoteRequest" message="impl:quoteRequest" />
>       <wsdl:output name="quoteResponse" message="impl:quoteResponse" />
>       <wsdl:fault name="ValidationException" message="impl:ValidationException" />
>     </wsdl:operation>
> When the server-side code is called and fails validation, it returns this soap message,
which conforms to the above operation. (the ValidationMessage element is specified in the
WSDL as a return element, but its structure isn't important)
> <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
>    <soapenv:Body>
>       <soapenv:Fault>
>          <faultcode>soapenv:Server</faultcode>
>          <faultstring>Missing field: Address line1</faultstring>
>          <detail>
>             <ValidationMessage xmlns="http://custom.example.org">You are missing
a required field.</ValidationMessage>
>          </detail>
>       </soapenv:Fault>
>    </soapenv:Body>
> </soapenv:Envelope>
> However, the unmarshalled org.example.custom.ValidationException() that is thrown from
the axis2 client does not have the exception message set.
> The section of the client stub that's responsible for unmarshalling the exception looks
like this:
> try {
>         // snip
>         //execute the operation client
>         // snip
> } 
> }catch(org.apache.axis2.AxisFault f){
>             org.apache.axiom.om.OMElement faultElt = f.getDetail();
>             if (faultElt!=null){
>                 if (faultExceptionNameMap.containsKey(faultElt.getQName())){
>                     //make the fault by reflection
>                     try{
>                         java.lang.String exceptionClassName = (java.lang.String)faultExceptionClassNameMap.get(faultElt.getQName());
>                         java.lang.Class exceptionClass = java.lang.Class.forName(exceptionClassName);
>                         java.lang.Exception ex=
>                                 (java.lang.Exception) exceptionClass.newInstance();
>                         //message class
>                         java.lang.String messageClassName = (java.lang.String)faultMessageMap.get(faultElt.getQName());
>                         java.lang.Class messageClass = java.lang.Class.forName(messageClassName);
>                         java.lang.Object messageObject = fromOM(faultElt,messageClass,null);
>                         java.lang.reflect.Method m = exceptionClass.getMethod("setFaultMessage",
>                                    new java.lang.Class[]{messageClass});
>                         m.invoke(ex,new java.lang.Object[]{messageObject});
>                         
>                         if (ex instanceof org.example.custom.ValidationException){
>                           throw (org.example.custom.ValidationException)ex;
>                         }
>                         // snip rest of method
> The problem is due to the generated line :
>                         java.lang.Exception ex=
>                                 (java.lang.Exception) exceptionClass.newInstance();
> This doesn't set the exception message.
> Perhaps the code generation could be changed to output
>                         java.lang.Exception ex=
>                                 (java.lang.Exception) exceptionClass.getConstructor(String.class).newInstance(f.getMessage());
> instead?

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