I'm pretty sure this is a duplicate but I found this same issue only in minecraft PE when searching, anyway, the problem is that this happend to a village in a brand new flat world.
seed:1232630107284937608
coordinates: -385 4 353
Environment
Java version : the one that comes with Minecraft (1.8.0_25)
OS: Windows 10 32-bit
Linked issues
Attachments
Comments 3
possibly related to MC-103023 (also looks like a superflat world)
Can you provide the seed and the coordinates?