Petals CDK

A EIP SU consume a Validation and XLST service in this order, the EIP itself is consumed by a SOAP SU (cf attachments).
When calling the Endpoint exposed outside the bus (thanks SOAP SU) with soapUI, the following error occurs:

[Petals.Container.Components.petals-bc-soap.jetty]-FINEST 2010-09-27 17:41:28,160 REQUEST /petals/services/OrderByPetals on org.mortbay.jetty.HttpConnection@86094d
[Petals.Container.Components.petals-bc-soap.jetty]-FINEST 2010-09-27 17:41:28,160 sessionManager=org.mortbay.jetty.servlet.HashSessionManager@1ab5267
[Petals.Container.Components.petals-bc-soap.jetty]-FINEST 2010-09-27 17:41:28,160 session=null
[Petals.Container.Components.petals-bc-soap.jetty]-FINEST 2010-09-27 17:41:28,160 servlet=AxisServlet
[Petals.Container.Components.petals-bc-soap.jetty]-FINEST 2010-09-27 17:41:28,160 chain=null
[Petals.Container.Components.petals-bc-soap.jetty]-FINEST 2010-09-27 17:41:28,160 servlet holder=AxisServlet
[Petals.Container.Components.petals-bc-soap]-FINE 2010-09-27 17:41:28,161 Receiving a message from Axis2 engine
[Petals.Container.Components.petals-bc-soap]-FINE 2010-09-27 17:41:28,161 Processing the incoming SOAP message
[Petals.Container.Components.petals-bc-soap]-FINEST 2010-09-27 17:41:28,161 soapAction found in the incoming message : http://petals.ow2.org/orderTicket
[Petals.Container.Components.petals-bc-soap]-FINEST 2010-09-27 17:41:28,162 jbiOperation retrieved : {http://petals.ow2.org}orderTicket
[Petals.Container.Components.petals-bc-soap]-FINEST 2010-09-27 17:41:28,165 Message in with Id 'petals:uid:90CD9CD2544DFBD3E4265242618633844' to send
[Petals.Container.Components.petals-bc-soap]-FINEST 2010-09-27 17:41:28,165 Operation : {http://petals.ow2.org}orderTicket
[Petals.Container.Components.petals-bc-soap]-FINEST 2010-09-27 17:41:28,165 MEP : http://www.w3.org/2004/08/wsdl/in-out
[Petals.Container.Components.petals-bc-soap]-FINEST 2010-09-27 17:41:28,165 Message property 'javax.jbi.messaging.protocol.headers' : {}
[Petals.Container.Components.petals-bc-soap]-FINEST 2010-09-27 17:41:28,166 Message Content : <?xml version="1.0" encoding="UTF-8"?><pet:orderTicket xmlns:pet="http://petals.ow2.org" xmlns:ord="http://petals.ow2.org/order" xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
<person>
<ord:name>hgf</ord:name>
<ord:age>18</ord:age>
<ord:sex>M</ord:sex>
</person>
<ticket>
<ord:from>
<ord:name>dfdsf</ord:name>
<ord:town>gt</ord:town>
<ord:country>gt</ord:country>
</ord:from>
<ord:to>
<ord:name>gt</ord:name>
<ord:town>gtf</ord:town>
<ord:country>gt</ord:country>
</ord:to>
<ord:price>34</ord:price>
</ticket>
</pet:orderTicket>
[Petals.Container.Components.petals-se-eip]-FINE 2010-09-27 17:41:28,166 Accepting a JBI message with Id : petals:uid:90CD9CD2544DFBD3E4265242618633844
[Petals.Container.Components.petals-se-eip]-FINEST 2010-09-27 17:41:28,166 Process an exchange as PROVIDER with id : petals:uid:90CD9CD2544DFBD3E4265242618633844
[Petals.Container.Components.petals-se-eip]-FINE 2010-09-27 17:41:28,166 Intercepting message processing on ACCEPT
[Petals.Container.Components.petals-se-eip]-FINE 2010-09-27 17:41:28,167 Routing-Slip: processing the pattern
[Petals.Container.Components.petals-se-eip]-WARNING 2010-09-27 17:41:28,167 A error occurs during an exchange processing : NullPointerException : Message undeterminated
[Petals.Container.Components.petals-se-eip]-FINE 2010-09-27 17:41:28,167 Intercepting message processing on ACCEPT_RESPONSE
[Petals.Container.Components.petals-se-eip]-FINEST 2010-09-27 17:41:28,168 Message out with Id 'petals:uid:90CD9CD2544DFBD3E4265242618633844' to send
[Petals.Container.Components.petals-se-eip]-FINEST 2010-09-27 17:41:28,168 Operation : {http://petals.ow2.org}orderTicket
[Petals.Container.Components.petals-se-eip]-FINEST 2010-09-27 17:41:28,168 MEP : http://www.w3.org/2004/08/wsdl/in-out
[Petals.Container.Components.petals-se-eip]-FINEST 2010-09-27 17:41:28,168 Message Content is null
[Petals.Container.Components.petals-bc-soap]-FINE 2010-09-27 17:41:28,173 Receive an Active status message
[Petals.Container.Components.petals-bc-soap]-FINE 2010-09-27 17:41:28,173 We found a fault into the JBI exchange.
[Petals.Container.Components.petals-bc-soap]-FINEST 2010-09-27 17:41:28,174 Message acknowledgement DONE with Id 'petals:uid:90CD9CD2544DFBD3E4265242618633844' to send
[Petals.Container.Components.petals-se-eip]-FINE 2010-09-27 17:41:28,174 Accepting a JBI message with Id : petals:uid:90CD9CD2544DFBD3E4265242618633844
[Petals.Container.Components.petals-se-eip]-FINEST 2010-09-27 17:41:28,174 Process an exchange as PROVIDER with id : petals:uid:90CD9CD2544DFBD3E4265242618633844
[Petals.Container.Components.petals-se-eip]-FINE 2010-09-27 17:41:28,174 Intercepting message processing on ACCEPT
[Petals.Container.Components.petals-bc-soap.jetty]-FINEST 2010-09-27 17:41:28,183 RESPONSE /petals/services/OrderByPetals 500

The warning log is not proper to determine the exception.
Moreover, the Fault created from this exception is not proper.