Problem with namespace handling in Axis 1.2 : break XML Signature

[valerie.bauche]

I have a web service (Message style) working with Axis 1.1
When upgrading to Axis 1.2, it doesn't work anymore because of a 
namespace management that changes in Axis 1.2.

Details of the problem :
The web service is of type :
   public Document execute(Document body)
it returns a signed document
The client have to verify the signature of the response.
At the end of this mail, you can see the message sent by the server and 
the message received by the client

You can see that the message has been changed during transfer : all
namespace definitions have moved to the root element.
The document is still syntactically correct, but the signature is broken...
It's a serious problem if Axis 1.2 is no more compatible with xml
signature. Is there a way to solve this problem ? Is it a bug ?
Message sent by the server :
<name1:roottag xmlns:name1="http://name1.com";>
<name2:child1 xmlns:name2="http://name2.com";>
<name2:child2>text</name2:child2>
</name2:child1>
<ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#";>
  <ds:SignedInfo>
    <ds:CanonicalizationMethod 
Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
    <ds:SignatureMethod 
Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1"/>
    <ds:Reference URI="">
      <ds:Transforms>
        <ds:Transform 
Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/>
      </ds:Transforms>
      <ds:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/>
      <ds:DigestValue>EbF81+pMnbZZ/e4E325r3R50pWA=</ds:DigestValue>
    </ds:Reference>
  </ds:SignedInfo>
  <ds:SignatureValue>

O12jWOqgkpkOXxGHmmXi0IzJhMv29uhbdl1PE1S/CYlL/Ua3sDSuReucWt1Ae6iRjKdN8Ekr
EaM0K/+bASmXXwK82pul3ZF4dykClCUKIX4eGLSYDsQIJzNhG5g6n+eRzxjk3Eak6G2eYAky
    qjVJp7Iic3opzb8VQKpLvle1ZME=
  </ds:SignatureValue>
</ds:Signature></name1:roottag>
Message received by the client :
<name1:roottag xmlns:ds="http://www.w3.org/2000/09/xmldsig#"; 
xmlns:name1="http://name1.com"; xmlns:name2="http://name2.com";>
<name2:child1>
<name2:child2>text</name2:child2>
</name2:child1>
<ds:Signature>
  <ds:SignedInfo>
    <ds:CanonicalizationMethod 
Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
    <ds:SignatureMethod 
Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1"/>
    <ds:Reference URI="">
      <ds:Transforms>
        <ds:Transform 
Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/>
      </ds:Transforms>
      <ds:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/>
      <ds:DigestValue>EbF81+pMnbZZ/e4E325r3R50pWA=</ds:DigestValue>
    </ds:Reference>
  </ds:SignedInfo>
  <ds:SignatureValue>

O12jWOqgkpkOXxGHmmXi0IzJhMv29uhbdl1PE1S/CYlL/Ua3sDSuReucWt1Ae6iRjKdN8Ekr
EaM0K/+bASmXXwK82pul3ZF4dykClCUKIX4eGLSYDsQIJzNhG5g6n+eRzxjk3Eak6G2eYAky
    qjVJp7Iic3opzb8VQKpLvle1ZME=
  </ds:SignatureValue>
</ds:Signature></name1:roottag>