wrapper.setCallContext(new CallContext());
// Construct a map with two elements, foo:aaaaa and bar:zzzzz
Element e = DocumentFactory.getInstance().createElement("map");
Element child = e.addElement("element");
child.addElement("k").addElement("str").addText("foo");
child.addElement("v").addElement("str").addText("aaaaa");
child = e.addElement("element");
child.addElement("k").addElement("str").addText("bar");
child.addElement("v").addElement("str").addText("zzzzz");