code: public static void registerSerializers( final Kryo kryo ) {
          final SynchronizedCollectionsSerializer serializer = new SynchronizedCollectionsSerializer();
          SynchronizedCollection.values();
          for ( final SynchronizedCollection item : SynchronizedCollection.values() ) {
              kryo.register( item.type, serializer );
          }
      }
docs: Creates a new {@link SynchronizedCollectionsSerializer} and registers its serializer
  for the several synchronized Collections that can be created via {@link Collections},
  including {@link Map}s.
  
  @param kryo the {@link Kryo} instance to set the serializer on.
  
  @see Collections#synchronizedCollection(Collection)
  @see Collections#synchronizedList(List)
  @see Collections#synchronizedSet(Set)
  @see Collections#synchronizedSortedSet(SortedSet)
  @see Collections#synchronizedMap(Map)
  @see Collections#synchronizedSortedMap(SortedMap)