Petals BC SOAP

If the partner service returns an empty body in the consumer mode, there is a NPE:

[Petals.Container.Components.petals-bc-soap]-FINE 2010-10-20 16:14:45,037 OUTGOING Payload : <pet:multiply xmlns:pet="http://petals.ow2.org/" xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
<a>?</a>
<b>?</b>
</pet:multiply>
[Petals.Container.Components.petals-bc-soap]-WARNING 2010-10-20 16:15:17,222 Catch an exception on the WS invocation : null
java.lang.NullPointerException
at org.ow2.petals.binding.soap.util.Marshaller.setProperties(Marshaller.java:488)
at org.ow2.petals.binding.soap.listener.outgoing.SOAPCaller.call(SOAPCaller.java:337)
at org.ow2.petals.binding.soap.listener.outgoing.JBIListener.invokeCaller(JBIListener.java:132)
at org.ow2.petals.binding.soap.listener.outgoing.JBIListener.onJBIMessage(JBIListener.java:156)
at org.ow2.petals.component.framework.process.MessageExchangeProcessor.processInOutAsProvider(MessageExchangeProcessor.java:637)
at org.ow2.petals.component.framework.process.MessageExchangeProcessor.processAsProvider(MessageExchangeProcessor.java:372)
at org.ow2.petals.component.framework.process.MessageExchangeProcessor.process(MessageExchangeProcessor.java:234)
at org.ow2.petals.component.framework.process.MessageExchangeProcessor.run(MessageExchangeProcessor.java:177)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
[Petals.Container.Components.petals-bc-soap]-FINE 2010-10-20 16:15:17,224 Intercepting message processing on ACCEPT_RESPONSE
[Petals.Container.Components.petals-bc-soap]-FINEST 2010-10-20 16:15:17,224 Message Fault with Id 'petals:uid:C4ECA8A4EDE398D25B275713143429148' to send
[Petals.Container.Components.petals-bc-soap]-FINEST 2010-10-20 16:15:17,224 Operation : {http://petals.ow2.org/}multiply
[Petals.Container.Components.petals-bc-soap]-FINEST 2010-10-20 16:15:17,225 MEP : http://www.w3.org/2004/08/wsdl/in-out
[Petals.Container.Components.petals-bc-soap]-FINEST 2010-10-20 16:15:17,226 Message Content : <?xml version="1.0" encoding="UTF-8" standalone="no"?><soapenv:Fault xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"><faultcode>soapenv:Server</faultcode><faultstring><![CDATA[NullPointerException]]></faultstring><faultactor>http://petals.ow2.org/petals-bc-soap</faultactor><detail><stackTrace><![CDATA[org.ow2.petals.component.framework.api.exception.SOAP11FaultServerException: NullPointerException
at org.ow2.petals.component.framework.process.MessageExchangeProcessor.processInOutAsProvider(MessageExchangeProcessor.java:664)
at org.ow2.petals.component.framework.process.MessageExchangeProcessor.processAsProvider(MessageExchangeProcessor.java:372)
at org.ow2.petals.component.framework.process.MessageExchangeProcessor.process(MessageExchangeProcessor.java:234)
at org.ow2.petals.component.framework.process.MessageExchangeProcessor.run(MessageExchangeProcessor.java:177)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
]]></stackTrace></detail></soapenv:Fault>
[Petals.Container.Components.petals-bc-soap]-FINE 2010-10-20 16:15:17,227 Receive an Active status message
[Petals.Container.Components.petals-bc-soap]-FINE 2010-10-20 16:15:17,227 We found a fault into the JBI exchange.
[Petals.Container.Components.petals-bc-soap]-FINEST 2010-10-20 16:15:17,228 Message acknowledgement DONE with Id 'petals:uid:C4ECA8A4EDE398D25B275713143429148' to send
[Petals.Container.Components.petals-bc-soap]-FINE 2010-10-20 16:15:17,229 Accepting a JBI message with Id : petals:uid:C4ECA8A4EDE398D25B275713143429148
[Petals.Container.Components.petals-bc-soap.jetty]-FINEST 2010-10-20 16:15:17,231 RESPONSE /petals/services/IntegrationServiceSOAPByPetals 500