Uses of Interface
org.bukkit.entity.EnderDragon

Packages that use EnderDragon 
Package Description
org.bukkit.boss
Classes concerning the creation of boss bars that appear at the top of the player's screen.
org.bukkit.entity
Interfaces for non-voxel objects that can exist in a world, including all players, monsters, projectiles, etc.
org.bukkit.event.entity
Events relating to entities, excluding some directly referencing some more specific entity types.