Entity entity;     //The entity you want to teleport
Entity teleportTo; //The entity where you want <entity> to be teleported to

boolean success = entity.teleport(teleportTo);   //Attempting to teleport.

if(success) {
//Teleport was successful
}else {
//Teleport wasn't successful
}

You can also add a cause to your teleport, so you can customize how your cause will be treated by your plugin or by others:

Entity entity;     //The entity you want to teleport
Entity teleportTo; //The entity where you want <entity> to be teleported to
PlayerTeleportEvent.TeleportCause cause;    //The cause you want the teleport to be of

boolean success = entity.teleport(teleportTo, cause);   //Attempting to teleport.

if(success) {
//Teleport was successful
}else {
//Teleport wasn't successful
}

Entity toBeTeleported;    //The entity you want to teleport
Location teleportTo = new Location(world,x,y,z,yaw,pitch);    //The location to teleport to


boolean success = toBeTeleported.teleport(teleportTo);

if(success) {
    //Teleport was successful
}else {
    //Teleport wasn't successful
}

You can also add a cause to your teleport, so you can customize how your cause will be treated by your plugin or by others:

Entity toBeTeleported;    //The entity you want to teleport
Location teleportTo = new Location(world,x,y,z,yaw,pitch);    //The location to teleport to
PlayerTeleportEvent.TeleportCause cause;    //The cause you want the teleport to be of


boolean success = toBeTeleported.teleport(teleportTo, cause);

if(success) {
    //Teleport was successful
}else {
    //Teleport wasn't successful
}

The EntityType enum represents all the entities from Bukkit/Spigot.

All its values can be found below.

Value	Description
AREA_EFFECT_CLOUD	N/A
ARMOR_STAND	Mechanical entity with an inventory for placing weapons / armor into.
ARROW	An arrow projectile; may get stuck in the ground.
BAT	N/A
BLAZE	N/A
BOAT	A place boat
CAVE_SPIDER	N/A
CHICKEN	N/A
COMPLEX_PART	N/A
COW	N/A
CREEPER	N/A
DRAGON_FIREBALL	Like FIREBALL, but with extra effects
DROPPED_ITEM	An item resting on the ground.
EGG	A flying chicken egg.
ENDER_CRYSTAL	N/A
ENDER_DRAGON	N/A
ENDER_PEARL	A flying ender pearl.
ENDER_SIGNAL	An ender eye signal.
ENDERMAN	N/A
ENDERMITE	N/A
EXPERIENCE_ORB	An experience orb.
FALLING_BLOCK	A block that is going to or is about to fall.
FIREBALL	A flying large fireball, as thrown by a Ghast for example.
FIREWORK	Internal representation of a Firework once it has been launched.
FISHING_HOOK	A fishing line and bobber.
GHAST	N/A
GIANT	N/A
GUARDIAN	N/A
HORSE	N/A
IRON_GOLEM	N/A
ITEM_FRAME	An item frame on a wall.
LEASH_HITCH	A leash attached to a fencepost.
LIGHTNING	A bolt of lightning.
LINGERING_POTION	A flying lingering potion
MAGMA_CUBE	N/A
MINECART	N/A
MINECART_CHEST	N/A
MINECART_COMMAND	N/A
MINECART_FURNACE	N/A
MINECART_HOPPER	N/A
MINECART_MOB_SPAWNER	N/A
MINECART_TNT	N/A
MUSHROOM_COW	N/A
OCELOT	N/A
PAINTING	A painting on a wall.
PIG	N/A
PIG_ZOMBIE	N/A
PLAYER	N/A
POLAR_BEAR	N/A
PRIMED_TNT	Primed TNT that is about to explode.
RABBIT	N/A
SHEEP	N/A
SHULKER	N/A
SHULKER_BULLET	Bullet fired by SHULKER.
SILVERFISH	N/A
SKELETON	N/A
SLIME	N/A
SMALL_FIREBALL	A flying small fireball, such as thrown by a Blaze or player.
SNOWBALL	A flying snowball.
SNOWMAN	N/A
SPECTRAL_ARROW	Like TIPPED_ARROW but causes the PotionEffectType.GLOWING effect on all team members.
SPIDER	N/A
SPLASH_POTION	A flying splash potion
SQUID	N/A
THROWN_EXP_BOTTLE	A flying experience bottle.
TIPPED_ARROW	Like ARROW but tipped with a specific potion which is applied on contact.
UNKNOWN	An unknown entity without an Entity Class
VILLAGER	N/A
WEATHER	N/A
WITCH	N/A
WITHER	N/A
WITHER_SKULL	A flying wither skull projectile.
WOLF	N/A
ZOMBIE	N/A

Entities can have passengers. A good example of a passenger is a Player riding a saddled pig, or a zombie inside a minecart.

Although there are specific vehicles, any entity can be a vehicle for any other entity with the SetPassenger method.

Entity vehicle;
Entity passenger;
boolean result = vehicle.setPassenger(passenger);   //False if couldn't be done for whatever reason

The passenger should now be attached to the vehicle

---

You can check if an entity has a passenger using

boolean hasPassenger =  entity.isEmpty()

---

If the entity has a passenger, you can retrieve the passenger entity with

Entity passenger = entity.getPassenger();

Will only return the primary passenger if the vehicle can have multiples.

---

Finally, you can eject an entity's passenger with

boolean b = entity.eject();   //Eject all passengers - returns true if there was a passenger to be ejected

To retrieve a list of nearby entities of an entity, one can use

List<Entity> nearby = entity.getNearbyEntities(double x, double y, double z);

Bukkit will then calculate a bounding box centered around entity, having as parameters:

• x: 1/2 the size of the box along x axis
• y: 1/2 the size of the box along y axis
• z: 1/2 the size of the box along z axis

The list may be empty, meaning that there are no nearby entities with the parameters.

This approach can be used to detect entities near custom projectiles, for example launching an Itemstack and detecting when it collides with a player