[jira] Resolved: (AXIS2-932) axis2 doesn't receive null values correctly

["Deepal Jayasinghe (JIRA)" <ji...@apache.org>]

     [ http://issues.apache.org/jira/browse/AXIS2-932?page=all ]

Deepal Jayasinghe resolved AXIS2-932.
-------------------------------------

    Resolution: Fixed

fixed in current SVN

> axis2 doesn't receive null values correctly
> -------------------------------------------
>
>                 Key: AXIS2-932
>                 URL: http://issues.apache.org/jira/browse/AXIS2-932
>             Project: Apache Axis 2.0 (Axis2)
>          Issue Type: Bug
>          Components: databinding
>    Affects Versions: 1.0
>         Environment: Java services (axis2) and .NET client.
>            Reporter: Egor Samarkhanov
>         Assigned To: Deepal Jayasinghe
>
> I created a simple service with the following method:
> public String[] testStringArrayWithNulls( String[] sarray )
> {
>   return sarray;
> }
> Then I generated WSDL file (Java2WSDL) and got the following types in
> it:
> <xs:element name="testStringArrayWithNulls">
>   <xs:complexType>
>     <xs:sequence>
>       <xs:element minOccurs="0" type="xs:string" name="sarray" maxOccurs="unbounded"/>
>     </xs:sequence>
>   </xs:complexType>
> </xs:element>
> <xs:element name="testStringArrayWithNullsResponse">
>   <xs:complexType>
>     <xs:sequence>
>       <xs:element minOccurs="0" type="xs:string" name="return" maxOccurs="unbounded"/>
>     </xs:sequence>
>   </xs:complexType>
> </xs:element>
> Then I added nillable="true" attribute manually to each item (to make .NET send
> nulls in SOAP), so the types are:
> <xs:element name="testStringArrayWithNulls">
>   <xs:complexType>
>     <xs:sequence>
>       <xs:element minOccurs="0" type="xs:string" name="sarray" maxOccurs="unbounded" nillable="true"/>
>     </xs:sequence>
>   </xs:complexType>
> </xs:element>
> <xs:element name="testStringArrayWithNullsResponse">
>   <xs:complexType>
>     <xs:sequence>
>       <xs:element minOccurs="0" type="xs:string" name="return" maxOccurs="unbounded"  nillable="true"/>
>     </xs:sequence>
>   </xs:complexType>
> </xs:element>
> Then I deployed this service and tested it with a simple .NET client
> that sends the following array (the operation is document/literal):
> [null, "str", null, "str", null]
> The SOAP message from .NET is as follows:
> <?xml version='1.0' encoding='utf-8'?>
> <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
>   <soap:Body>
>     <testStringArrayWithNulls xmlns="http://org.apache.axis2/xsd">
>       <sarray xsi:nil="true" />
>       <sarray>str</sarray>
>       <sarray xsi:nil="true" />
>       <sarray>str</sarray>
>       <sarray xsi:nil="true" />
>     </testStringArrayWithNulls>
>   </soap:Body>
> </soap:Envelope>
> But for some reason my service class gets:
> ["", "str", "", "str", ""]
> All null values in the array are replaced with empty strings :(
> =============
> I also tried to return the same array (with nulls) form the method
> and axis made the following SOAP response:
> <?xml version='1.0' encoding='utf-8'?>
> <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
>   <soapenv:Header />
>   <soapenv:Body>
>     <ns:testStringArrayWithNullsResponse xmlns:ns="http://org.apache.axis2/xsd">
>       <return>
>       </return>
>       <return>str</return>
>       <return>
>       </return>
>       <return>str</return>
>       <return>
>       </return>
>     </ns:testStringArrayWithNullsResponse>
>   </soapenv:Body>
> </soapenv:Envelope>
> This response actually sends empty strings (and .NET client shows
> them). To me the correct SOAP response should be as follows:
> <?xml version='1.0' encoding='utf-8'?>
> <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
>                   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
>   <soapenv:Header />
>   <soapenv:Body>
>     <ns:testStringArrayWithNullsResponse xmlns:ns="http://org.apache.axis2/xsd">
>       <return xsi:nil="true"/>
>       <return>ssttrriinngg</return>
>       <return xsi:nil="true"/>
>       <return>ssttrriinngg</return>
>       <return xsi:nil="true"/>
>     </ns:testStringArrayWithNullsResponse>
>   </soapenv:Body>
> </soapenv:Envelope>
> 1. Axis2 should correctly handle nulls in requests and responses (shouldn't replace them
>    with empty strings).
> 2. Java2WSDL should add nillable="true" to Object array elements automatically
>    (probably not only to Object[] but to any "nullable" type).

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