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Date: Fri, 29 Sep 2006 07:06:50 -0700 (PDT)
From: "Todd Doolittle (JIRA)" <jira@apache.org>
To: axis-dev@ws.apache.org
Subject: [jira] Commented: (AXIS2-1247) wsdl2java generated client throws
 NumberFormatException on nil integer
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    [ http://issues.apache.org/jira/browse/AXIS2-1247?page=comments#action_12438721 ] 
            
Todd Doolittle commented on AXIS2-1247:
---------------------------------------


I tested this and it appears to work.  Strings come back as NULL, Dates come back as NULL, and integers come back as 0 when the message specifies nil="true".

The only problem I see now is there no way to differentiate between an integer that was really sent as 0, and one that was sent as nil/null.  Would it be better to set the integer value to Integer.MIN_VALUE instead of 0 when it is sent as nil/null?  It would make it easier to identify.  Another option would be to add a boolean method is<memberName>Null (i.e. isKsnNull()) for each integer value.  Another option would be to use the wrapper class Integer instead of int, but that's probably a lot more work.

Thanks again for the quick response!!!
Todd

> wsdl2java generated client throws NumberFormatException on nil integer
> ----------------------------------------------------------------------
>
>                 Key: AXIS2-1247
>                 URL: http://issues.apache.org/jira/browse/AXIS2-1247
>             Project: Apache Axis 2.0 (Axis2)
>          Issue Type: Bug
>    Affects Versions: nightly
>         Environment: Java 1.4.2, Tomcat 4, Axis 2 Nightly Build
>            Reporter: Todd Doolittle
>            Priority: Blocker
>
> I used wsdl2java to create a client based on wsdl from a non-java service.  The wsdl specifies that one of the returned values is an integer and is nillable like this...
> <xsd:element name="ksn" nillable="true" type="xsd:int" />
> When the service returns a null/nill value it looks like this in the SOAP body:
> <fjs1:ksn xsi:nil="true"/>
> The client code throws a number format exception while processing this...
> Caused by: java.lang.NumberFormatException: For input string: ""
> 	at java.lang.NumberFormatException.forInputString(Unknown Source)
> 	at java.lang.Integer.parseInt(Unknown Source)
> 	at java.lang.Integer.parseInt(Unknown Source)
> 	at org.apache.axis2.databinding.utils.ConverterUtil.convertToInt(ConverterUtil.java:210)
> 	at org.tempuri.POCStub$Item_type0$Factory.parse(POCStub.java:2149)
> 	at org.tempuri.POCStub$Items_type1$Factory.parse(POCStub.java:1157)
> 	at org.tempuri.POCStub$GetinfoResponse$Factory.parse(POCStub.java:1593)
> 	at org.tempuri.POCStub.fromOM(POCStub.java:2330)
> 	... 3 more
> Here is the SOAP message my client sent (which looks fine):
> POST /ws/r/poc?WSDL
> HTTP/1.1
> SOAPAction: getinfo
> User-Agent: Axis2
> Host: localhost:8090
> Transfer-Encoding: chunked
> Content-Type: text/xml; charset=UTF-8
> 160
> <?xml version='1.0' encoding='UTF-8'?>
> <soapenv:Envelope
>   xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
>   <soapenv:Header />
>   <soapenv:Body>
>     <ns1:lookup xmlns:ns1="http://tempuri.org/" count="1">
>       <ns1:upc>2000000910</ns1:upc>
>       <ns1:upc
>         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" nil="true" />
>     </ns1:lookup>
>   </soapenv:Body>
> </soapenv:Envelope>
> 0
> Here is the non-java service's reply:
> HTTP/1.1 200 OK 
> Date: Wed, 27 Sep 2006 15:23:37 GMT
> Server: Four J's Server (Build 369)
> Content-Type: text/xml; charset="UTF-8"
> Content-Length: 532
> <?xml version="1.0" encoding="UTF-8" standalone="no" ?>
> <SOAP-ENV:Envelope
>   xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/">
>   <SOAP-ENV:Body>
>     <fjs1:GetinfoResponse xmlns:fjs1="http://tempuri.org/" count="1"
>       xmlns:xsd="http://www.w3.org/2001/XMLSchema"
>       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
>       <fjs1:items>
>         <fjs1:item>
>           <fjs1:ksn xsi:nil="true" />
>           <fjs1:upc>2000000910</fjs1:upc>
>           <fjs1:maintdt xsi:nil="true" />
>           <fjs1:dpt xsi:nil="true" />
>         </fjs1:item>
>       </fjs1:items>
>     </fjs1:GetinfoResponse>
>   </SOAP-ENV:Body>
> </SOAP-ENV:Envelope>
> Here is the WSDL from the service...
> <?xml version="1.0" encoding="UTF-8" standalone="no" ?>
> <wsdl:definitions xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"
>   name="POC" targetNamespace="http://tempuri.org/"
>   xmlns:fjs="http://tempuri.org/"
>   xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
>   xmlns:xsd="http://www.w3.org/2001/XMLSchema">
>   <wsdl:types>
>     <xsd:schema elementFormDefault="qualified"
>       targetNamespace="http://tempuri.org/"
>       xmlns:s1="http://tempuri.org/">
>       <xsd:element name="lookup">
>         <xsd:complexType>
>           <xsd:sequence>
>             <xsd:element maxOccurs="unbounded" minOccurs="0"
>               name="upc" nillable="true" type="xsd:string" />
>           </xsd:sequence>
>           <xsd:attribute name="count" type="xsd:int"
>             use="required" />
>         </xsd:complexType>
>       </xsd:element>
>       <xsd:element name="GetinfoResponse">
>         <xsd:complexType>
>           <xsd:sequence>
>             <xsd:element name="items" nillable="true">
>               <xsd:complexType>
>                 <xsd:sequence>
>                   <xsd:element maxOccurs="unbounded"
>                     minOccurs="0" name="item" nillable="true">
>                     <xsd:complexType>
>                       <xsd:sequence>
>                         <xsd:element name="ksn"
>                           nillable="true" type="xsd:int" />
>                         <xsd:element name="upc"
>                           nillable="true" type="xsd:string" />
>                         <xsd:element
>                           name="maintdt" nillable="true" type="xsd:date" />
>                         <xsd:element name="dpt"
>                           nillable="true" type="xsd:int" />
>                       </xsd:sequence>
>                     </xsd:complexType>
>                   </xsd:element>
>                 </xsd:sequence>
>               </xsd:complexType>
>             </xsd:element>
>           </xsd:sequence>
>           <xsd:attribute name="count" type="xsd:int"
>             use="required" />
>         </xsd:complexType>
>       </xsd:element>
>     </xsd:schema>
>   </wsdl:types>
>   <wsdl:message name="GetinfoIn">
>     <wsdl:part element="fjs:lookup" name="parameters" />
>   </wsdl:message>
>   <wsdl:message name="GetinfoOut">
>     <wsdl:part element="fjs:GetinfoResponse" name="parameters" />
>   </wsdl:message>
>   <wsdl:portType name="POCPortType">
>     <wsdl:operation name="Getinfo">
>       <wsdl:input message="fjs:GetinfoIn" name="lookup" />
>       <wsdl:output message="fjs:GetinfoOut"
>         name="GetinfoResponse" />
>     </wsdl:operation>
>   </wsdl:portType>
>   <wsdl:binding name="POCBinding" type="fjs:POCPortType">
>     <soap:binding transport="http://schemas.xmlsoap.org/soap/http" />
>     <wsdl:operation name="Getinfo">
>       <soap:operation soapAction="getinfo" style="document" />
>       <wsdl:input name="lookup">
>         <soap:body use="literal" />
>       </wsdl:input>
>       <wsdl:output name="GetinfoResponse">
>         <soap:body use="literal" />
>       </wsdl:output>
>     </wsdl:operation>
>   </wsdl:binding>
>   <wsdl:service name="POC">
>     <wsdl:port binding="fjs:POCBinding" name="POCPortType">
>       <soap:address location="http://localhost:8090/POC/POC" />
>     </wsdl:port>
>   </wsdl:service>
> </wsdl:definitions>

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