public class EntryIdAndCallback<K,T>
A sort of delayed-binding mechanism to help with serializing large, highly
connected graphs of Java objects where you usually get a stack-depth
exception when the default DFS Java serialization mechanism does its thing.
This support class is to help where you replace your object references with
id references in a custom object serialization routine. Then you also have a
callback that repopulates the actual object reference upon deserialization.