Uses of Interface
org.bukkit.OfflinePlayer

Packages that use OfflinePlayer 
Package Description
org.bukkit
The root package of the Bukkit API, contains generalized API classes.
org.bukkit.block
Classes used to manipulate the voxels in a world, including special states.
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.inventory.meta
The interfaces used when manipulating extra data can can be stored inside item stacks.
org.bukkit.scoreboard
Interfaces used to manage the client side score display system.