@InterfaceAudience.Private
public class PackagePrivateFieldAccessor
extends Object

A helper class used to access the package private field in o.a.h.h.client package.

This is because we share some data structures between client and server and the data structures are marked as InterfaceAudience.Public, but we do not want to expose some of the fields to end user.

TODO: A better solution is to separate the data structures used in client and server.