Map<String, TreeMap<String, String>> innerTreeMap = new MockTreeMapClass();
TreeMap resultTreeMap = innerTreeMap.get("outKey");
resultTreeMap.put("innerKey", "innerValue");
ByteArrayOutputStream baos = new ByteArrayOutputStream();
XMLEncoder xmlEncoder = new XMLEncoder(baos);
assertCodedXML(innerTreeMap, "/xml/MockTreeMap.xml", baos, xmlEncoder);
assertEquals(1, innerTreeMap.size());
}