Hi Now I solve my own problem, but to others help The XML DOM object I return in the Soap Body, are used in an other case where I'm serializing it using javax.xml.transform.Transformer. It does not add the xmlns namespacedeclaration attribute, why i'm adding it myself in the DOM object. My solution is to use the org.apache.soap.util.xml.DOM2Writer (used by the Body.marshall() method) to serialize the DOM object in th non Soap case.
But actualy I think the DOM2Writer should recognize that the namespace declaration allready have been done. /Jakob