An XML document parsed with the Forge XMLParser cannot be exported with XMLParser#toXML if it contains comments

When the XMLParser#parse method is called on a stream which contains comments, DOM creates a Node named "#comment" and the corresponding Node is created by Forge parser. After that, when the XMLParser#toXML method is called on the XML root node an exception is thrown.

At serialization Forge parser tries to create a Node with name "#comment" by using the method Document#createElement (which is illegal and result in a DOMException#INVALID_CHARACTER_ERR) instead of calling the method Document#createComment. IMO, the same problem could happen with others specific nodes.

Maybe Shrinkwrap descriptor project could have the same problem, but it needs further investigations...