NAMESPACE_ERR when calling SardineUtil.createElement()

[carlosgarciaibanez]

The method createElement() in the SardineUtil class can be invoked with a QName which prefix is not specified. In this case, the colon should be ommited when it calls the createElementNS() on the document object. Otherwise a NAMESPACE_ERR arises. The original line is

return createDocument().createElementNS(key.getNamespaceURI(), key.getPrefix() + ":" + key.getLocalPart());

and my suggestion is

return createDocument().createElementNS(key.getNamespaceURI(),(key.getPrefix().isEmpty()? "" : key.getPrefix()+":") + key.getLocalPart());