Java Edition 12w04a

12w04a is the second snapshot for Java Edition 1.2.1, released on January 26, 2012, which adds ocelots, jungle saplings, bottles o' enchanting, and fire charges.

Blocks

 * Jungle Sapling JE1 BE1.png Jungle sapling
 * Can be grown into the new jungle trees.
 * Growing a 4×4 square of jungle saplings to create large jungle trees.

Items

 * Bottle o' Enchanting Revision 1.png Bottle o' enchanting
 * Can be thrown similarly to splash potions and spawns experience orbs upon breaking.


 * Fire Charge JE1 BE1.png Fire charge
 * Can be shot out of dispensers to launch fireballs and can be placed to create fire.


 * Ocelot spawn egg
 * Spawns the ocelot mob.

Mobs

 * Ocelot Revision 1.png Ocelots
 * New jungle-specific mob that can be tamed with raw fish.
 * Tamed ocelots will scare off creepers, can be told to sit, and will teleport to their owner similarly to wolves.

World generation

 * Desert wells
 * Added desert wells, which are newly generated structures which are exclusive to desert biomes.

Blocks

 * Dispenser Revision 2.png Dispensers
 * Texture changed from Dispenser Revision 1.png


 * Oak Sapling JE4 BE1.png Oak Saplings
 * Texture changed from Oak Sapling JE3.png.


 * Vines
 * Players are slowed when going through vines due to their nature of being a collisionless ladder.

Items

 * Spawn Eggs
 * Eggs set to spawn arbitrary data IDs (such as giants, ender dragons, ender crystals) no longer spawn those entities.
 * Now only spawn those mobs also available in the creative inventory.

Mobs

 * General
 * Mobs have a new AI with new and improved behaviors.
 * Skeletons and zombies burning from sunlight will flee to darkness or jump in water.
 * Mobs no longer attempt to jump over wooden fences.

General

 * Languages
 * Updated language files.