The FAQ states that for instance XML declaration writing can be turned on via system property
"javax.xml.soap.write-xml-declaration", but infact this property seems to be ignored.

I suggest a change to the constructor of org.jboss.ws.core.soap.SOAPMessageImpl from

setProperty(WRITE_XML_DECLARATION, false);

to

setProperty(WRITE_XML_DECLARATION,
System.getProperty(WRITE_XML_DECLARATION, "false"));

or sth similar. The above change solves the problem easily and I suppose the same should be done for
CHARACTER_SET_ENCODING, although it has a more sensible default (UTF-8).

Regards,

Per L