Example
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
}
