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Date: Thu, 23 Jul 2009 22:06:14 -0700 (PDT)
From: "Banu Maheswari (JIRA)" <jira@apache.org>
To: axis-dev@ws.apache.org
Subject: [jira] Updated: (AXIS2-4446) Serviceclient problem invoking
 operations which have extended classes as parameters
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     [ https://issues.apache.org/jira/browse/AXIS2-4446?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Banu Maheswari updated AXIS2-4446:
----------------------------------

    Affects Version/s: 1.4.1

> Serviceclient problem invoking operations which have extended classes as parameters
> -----------------------------------------------------------------------------------
>
>                 Key: AXIS2-4446
>                 URL: https://issues.apache.org/jira/browse/AXIS2-4446
>             Project: Axis 2.0 (Axis2)
>          Issue Type: Bug
>          Components: client-api
>    Affects Versions: 1.4.1
>         Environment: Windows
>            Reporter: Banu Maheswari
>
> Hi,
> When I try to invoke a webservice which takes as argument, an extended class, then it is returning the following error.
> org.apache.axiom.om.OMException: java.lang.NullPointerException
>             at org.apache.axiom.om.impl.builder.StAXOMBuilder.next(StAXOMBuilder.java:249)
>             at org.apache.axiom.om.impl.llom.OMNodeImpl.build(OMNodeImpl.java:327)
>             at org.apache.axiom.om.impl.llom.OMElementImpl.build(OMElementImpl.java:706)
>             at org.apache.axiom.om.impl.llom.OMElementImpl.detach(OMElementImpl.java:675)
>             at org.apache.axiom.om.impl.llom.OMNodeImpl.setParent(OMNodeImpl.java:124)
>             at org.apache.axiom.om.impl.llom.OMElementImpl.addChild(OMElementImpl.java:274)
>             at org.apache.axiom.om.impl.llom.OMElementImpl.addChild(OMElementImpl.java:203)
>             at org.apache.axiom.soap.impl.llom.SOAPBodyImpl.addChild(SOAPBodyImpl.java:231)
>             at org.apache.axis2.client.ServiceClient.fillSOAPEnvelope(ServiceClient.java:713)
>             at org.apache.axis2.client.ServiceClient.sendReceive(ServiceClient.java:545)
>             at org.apache.axis2.client.ServiceClient.sendReceive(ServiceClient.java:528)
>             at org.apache.axis2.rpc.client.RPCServiceClient.invokeBlocking(RPCServiceClient.java:102)
> I have a User class {username, password} and a Master class which extends User class { address, accountType} in my webservice app.
> In my client application when i call serviceClient.invokeBlocking(operation, args.toArray(), returnTypes), where I pass Master class object as one of args, then I get the above error.
> However when I remove the "extends User" from Master class and put all fields in Master class directly, when I invoke the same operation it works fine without any issue.

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