[wsas-java-dev] [jira] Commented: (WSAS-636) Data service invocation fails due to a NPE at client side (Response soap body is blank)

[Charitha Kankanamge (JIRA)]

    [ http://wso2.org/jira/browse/WSAS-636?page=comments#action_13852 ] 
            
Charitha Kankanamge commented on WSAS-636:
------------------------------------------

It has been noticed that the queries are not saved when they are created through WSAS management console UI, which may be the root cause of the above problem.

> Data service invocation fails due to a NPE at client side (Response soap body is blank)
> ---------------------------------------------------------------------------------------
>
>                 Key: WSAS-636
>                 URL: http://wso2.org/jira/browse/WSAS-636
>             Project: WSO2 WSAS
>          Issue Type: Bug
>          Components: data-services
>    Affects Versions: Nightly
>         Environment: winxp, jdk15, WSAS-2.2-QAbuild1
>            Reporter: Charitha Kankanamge
>         Assigned To: sumedha rubasinghe
>            Priority: Blocker
>
> I couldn't invoke a simple data service either with REST or generated stub. 
> - The sample data service configuration is as follows.
> <data name="Employeedataservice">
> <config>
> <property name="org.wso2.ws.dataservice.driver">com.mysql.jdbc.Driver</property>
> <property name="org.wso2.ws.dataservice.protocol">jdbc:mysql://localhost:3306/EmployeeDB</property>
> <property name="org.wso2.ws.dataservice.user">root</property>
> <property name="org.wso2.ws.dataservice.password">root</property>
> </config>
> <query id="Mtlaviniaemployees">
> <result element="employees" rowName="employee">
> <element name="name" column="name" />
> <element name="id" column="id" />
> <element name="address" column="address" />
> </result>
> </query>
> <operation name="getMtLaviniaEmployees">
> <call-query href="Mtlaviniaemployees" />
> </operation>
> </data>
>  - Deploy this service in WSAS and generate ADB client 
> - Write a client 
> public class Client {
> 	
> 	public static void main(String[] args) throws AxisFault {
> 		EmployeedataserviceStub stub = new EmployeedataserviceStub("http://127.0.0.1:9763/services/Employeedataservice");
> 		EmployeedataserviceStub.GetMtLaviniaEmployees req = new EmployeedataserviceStub.GetMtLaviniaEmployees();
> 		
> 		try {
> 			EmployeedataserviceStub.Employees res = stub.getMtLaviniaEmployees(req);
> 			System.out.println(res.getEmployee()[0]);
> 		} catch (RemoteException e) {
> 			// TODO Auto-generated catch block
> 			e.printStackTrace();
> 		}
> 	}
> }
> - Run the client
> following exception will be thrown at  client side.
> org.apache.axis2.AxisFault
> 	at org.apache.axis2.AxisFault.makeFault(AxisFault.java:417)
> 	at org.wso2.wsas.client.EmployeedataserviceStub.fromOM(EmployeedataserviceStub.java:2210)
> 	at org.wso2.wsas.client.EmployeedataserviceStub.getMtLaviniaEmployees(EmployeedataserviceStub.java:178)
> 	at Client.main(Client.java:14)
> Caused by: java.lang.NullPointerException
> 	at org.wso2.wsas.client.EmployeedataserviceStub.fromOM(EmployeedataserviceStub.java:2204)
> 	... 2 more
> ====================================================================================================================================
> Soap request
> -------------------
> <?xml version='1.0' encoding='UTF-8'?>
>    <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
>       <soapenv:Body>
>          <ns1:getMtLaviniaEmployees xmlns:ns1="http://ws.wso2.org/dataservice" />
>       </soapenv:Body>
>    </soapenv:Envelope>
> Soap response
> ----------------------
> <?xml version='1.0' encoding='UTF-8'?>
>    <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
>       <soapenv:Body />
>    </soapenv:Envelope>

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