[ebxmlms-general] EbxmlMessage(File file) throws an 'Absent Content-Type Exception'

[<om...@no...>]

Sorry for the cross posting, but I don't know where exactly put this mesage.
I use MSH v.pre-1.0.0.0, build from cvs (date : approx 11/03/2004).
I use only mail messaging.

When I try to build a new EbxmlMessage using EbxmlMessage(File file), I 
get a javax.xml.soap.SOAPException: Cannot parse SOAP message
The message is a Ack generated by MSH in the server repository.
This ack doesn't have any content-type header.
After investigations, I get :
javax.xml.soap.SOAPException: Absent Content-Type at 
com.sun.xml.messaging.saaj.soap.MessageImpl.<init>(MessageImpl.java:86)
at 
com.sun.xml.messaging.saaj.soap.MessageFactoryImpl.createMessage(MessageFactoryImpl.java:32) 
at 
hk.hku.cecid.phoenix.message.packaging.EbxmlMessage.getMessageFromDataSource(EbxmlMessage.java:1681)
at 
hk.hku.cecid.phoenix.message.packaging.EbxmlMessage.<init>(EbxmlMessage.java:241)

The documentation says about this constructor: construct an EbxmlMessage 
from File using the logic in MessageServer. The file must not contain 
any content header like Content-Type

In EbxmlMessage.getMessageFromDataSource (about line: 1673), the 
following is commented :
/*
final MimeHeaders headers = new MimeHeaders();
headers.addHeader(Constants.CONTENT_TYPE, Constants.TEXT_XML_TYPE);
*/

this explains why the code fails.
The problem is that an ack must be loaded when retrying to send it, and 
it causes error.

Shall I uncomment the two lines ?

thanks

Regards
Olivier Moises