| Package | Description | 
|---|---|
| org.bukkit | The root package of the Bukkit API, contains generalized API classes. | 
| 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. | 
| Class | Description | 
|---|---|
| BarColor | |
| BarFlag | |
| BarStyle | |
| BossBar | |
| DragonBattle | Represents a dragon battle state for a world with an end environment. | 
| KeyedBossBar | Represents a custom  BossBarthat has aNamespacedKey | 
| Class | Description | 
|---|---|
| BarColor | |
| BarFlag | |
| BarStyle | |
| BossBar | |
| DragonBattle.RespawnPhase | Represents a phase in the dragon respawn process. | 
| Class | Description | 
|---|---|
| BossBar | |
| DragonBattle | Represents a dragon battle state for a world with an end environment. | 
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