StartDocument( documentVersion="1.0" ) Comment( text=" Illegal use of 1.1-style prefix unbinding in 1.0 document " ) StartElement( name="foo" namespaceUri="http://example.org/namespace" qualifiedName="a:foo" prefix="a" NamespaceDeclaration( prefix="a" namespaceUri="http://example.org/namespace" ) ) Characters( whitespace text=" " ) Invalid( name="foo" qualifiedName="a:foo" prefix="a" ) ERROR: Illegal namespace declaration.