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From "Amila Suriarachchi" <amilasuriarach...@gmail.com>
Subject Re: org.apache.axis2.databinding.ADBException: Property cannot be null!
Date Tue, 23 Oct 2007 05:39:39 GMT
this means your object structure do not have loaded the required fault
elements.

see you schema there should be an element named fault without minOccurs=0 or
nillable=ture.
So ADB gives an exception because of this.

if you want to remove this use -Eosv when genrating the code.

Amia.


On 10/23/07, Huitang Li <huitang.li@kpi-consulting.net> wrote:
>
> Hi,
>
> I created a web service code based on a wsdl, and it is run in resin
> 3.1.3, and I have the soapmonitor activated.  When a web service client
> sent a soap message to it, it threw the following exception:
>
> java.lang.RuntimeException: Can not serialize OM Element Envelope
>     at
> org.apache.axiom.om.impl.llom.OMElementImpl.toString(OMElementImpl.java
> :916)
>     at
> org.apache.axis2.handlers.soapmonitor.SOAPMonitorHandler.invoke(
> SOAPMonitorHandler.java:101)
>     at org.apache.axis2.engine.Phase.invoke(Phase.java:292)
>     at org.apache.axis2.engine.AxisEngine.invoke(AxisEngine.java:212)
>     at org.apache.axis2.engine.AxisEngine.sendFault(AxisEngine.java:442)
>     at
> org.apache.axis2.transport.http.AxisServlet.handleFault(AxisServlet.java
> :403)
>     at
> org.apache.axis2.transport.http.AxisServlet.processAxisFault(
> AxisServlet.java:366)
>     at
> org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:154)
>     at javax.servlet.http.HttpServlet.service(HttpServlet.java:153)
>     at javax.servlet.http.HttpServlet.service(HttpServlet.java:91)
>     at
> com.caucho.server.dispatch.ServletFilterChain.doFilter(
> ServletFilterChain.java:103)
>     at
> com.caucho.server.security.SecurityFilterChain.doFilter(
> SecurityFilterChain.java:134)
>     at
> com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java
> :178)
>     at
> com.caucho.server.dispatch.ServletInvocation.service(
> ServletInvocation.java:241)
>     at
> com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:268)
>     at com.caucho.server.port.TcpConnection.run(TcpConnection.java:586)
>     at com.caucho.util.ThreadPool$Item.runTasks(ThreadPool.java:690)
>     at com.caucho.util.ThreadPool$Item.run(ThreadPool.java:612)
>     at java.lang.Thread.run(Thread.java:595)
> Caused by: org.apache.axis2.databinding.ADBException: Property cannot be
> null!
>     at test.Fault.serialize(Fault.java:95)
>     at test.Fault$1.serialize(Fault.java:80)
>     at
> org.apache.axis2.databinding.ADBDataSource.serialize(ADBDataSource.java
> :82)
>     at
>
> org.apache.axiom.om.impl.llom.OMSourcedElementImpl.internalSerializeAndConsume
> (OMSourcedElementImpl.java:599)
>     at
> org.apache.axiom.soap.impl.llom.SOAPFaultDetailImpl.internalSerialize(
> SOAPFaultDetailImpl.java:86)
>     at
> org.apache.axiom.om.impl.llom.OMElementImpl.internalSerialize(
> OMElementImpl.java:756)
>     at
> org.apache.axiom.soap.impl.llom.SOAPFaultImpl.internalSerialize(
> SOAPFaultImpl.java:192)
>     at
> org.apache.axiom.om.impl.llom.OMElementImpl.internalSerialize(
> OMElementImpl.java:756)
>     at
> org.apache.axiom.om.impl.llom.OMElementImpl.internalSerialize(
> OMElementImpl.java:772)
>     at
> org.apache.axiom.om.impl.llom.OMElementImpl.internalSerialize(
> OMElementImpl.java:756)
>     at
> org.apache.axiom.soap.impl.llom.SOAPEnvelopeImpl.internalSerialize(
> SOAPEnvelopeImpl.java:210)
>     at
> org.apache.axiom.om.impl.llom.OMElementImpl.internalSerialize(
> OMElementImpl.java:756)
>     at
> org.apache.axiom.om.impl.llom.OMNodeImpl.serialize(OMNodeImpl.java:345)
>     at
> org.apache.axiom.om.impl.llom.OMElementImpl.toString(OMElementImpl.java
> :913)
>     ... 18 more
>
> This exception will not be shown when all elements in the requesting
> soap message are filled with non-empty (no-blankspace) values.
>
> I notice that the exception is thrown from the following axis2-generated
> code:
>
>
>    public void serialize(final javax.xml.namespace.QName parentQName,
>         final org.apache.axiom.om.OMFactory factory,
>
> org.apache.axis2.databinding.utils.writer.MTOMAwareXMLStreamWriter
> xmlWriter)
>         throws javax.xml.stream.XMLStreamException,
>             org.apache.axis2.databinding.ADBException {
>         //We can safely assume an element has only one type associated
> with it
>         if (localFault == null) {
>             throw new org.apache.axis2.databinding.ADBException(
>                 "Property cannot be null!");
> <========================  the line where the exception is thrown.
>         }
>
>         localFault.serialize(MY_QNAME, factory, xmlWriter);
>     }
>
>
> My question is: In the line where the exception is thrown, why is the
> parameter localFault null? How to make it as a non-null value?
>
> Thanks.
>
>
>
>
>
>
>
>
>
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>
>


-- 
Amila Suriarachchi,
WSO2 Inc.

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