static <K, V> Map<K, V> newMap(K key, V value)
    {
        HashMap<K, V> map = new HashMap<K, V>();
        map.put(key, value);
        return map;
    }
Test cyclic ser/deser on fields where the type is dynamic.

@author David Yu
@created Oct 20, 2011
protostuff-runtime/src/test/java/io/protostuff/runtime/ObjectSchemaTest.java