Uses of Interface
org.bukkit.entity.Item

Packages that use Item 
Package Description
org.bukkit
The root package of the Bukkit API, contains generalized API classes.
org.bukkit.event.block
Events relating to when a block is changed or interacts with the world.
org.bukkit.event.entity
Events relating to entities, excluding some directly referencing some more specific entity types.
org.bukkit.event.inventory
Events relating to inventory manipulation.
org.bukkit.event.player
Events relating to players.