gistfile1.txt

scala> import net.minecraft.tileentity.TileEntity
import net.minecraft.util.BlockPos
import net.minecraft.world.IBlockAccess

def getTile[T <: TileEntity](world: IBlockAccess, pos: BlockPos): T = world.getTileEntity(pos) match {
  case t: T => t
  case _ => null
}
import net.minecraft.tileentity.TileEntity

scala> import net.minecraft.util.BlockPos

scala> import net.minecraft.world.IBlockAccess

scala>      |      |      | <console>:11: warning: abstract type pattern T is unchecked since it is eliminated by erasure
         case t: T => t
                 ^
<console>:12: error: type mismatch;
 found   : Null(null)
 required: T
         case _ => null
                   ^

scala>