Uses of Interface
org.bukkit.OfflinePlayer

Packages that use OfflinePlayer 
Package Description
org.bukkit
More generalized classes in the API.
org.bukkit.configuration
Classes dedicated to handling a plugin's runtime configuration.
org.bukkit.entity
Interfaces for non-voxel objects that can exist in a world, including all players, monsters, projectiles, etc.
org.bukkit.scoreboard
Interfaces used to manage the client side score display system.