# File lib/soap/mapping/factory.rb, line 309
  def obj2soap(soap_class, obj, info, map)
    if !@allow_original_mapping and !obj.instance_variables.empty?
      return nil
    end
    if !obj.default.nil? or
        (obj.respond_to?(:default_proc) and obj.default_proc)
      return nil
    end
    soap_obj = SOAPStruct.new(MapQName)
    mark_marshalled_obj(obj, soap_obj)
    obj.each do |key, value|
      elem = SOAPStruct.new
      elem.add("key", Mapping._obj2soap(key, map))
      elem.add("value", Mapping._obj2soap(value, map))
      # ApacheAxis allows only 'item' here.
      soap_obj.add("item", elem)
    end
    soap_obj
  end