Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing
Bukkit Changes:
6a4242cb #468: Allow delegation of certain elements to Vanilla when using a custom ChunkGenerator
c6697f90 SPIGOT-5559: Add EntityPotionEffectEvent causes for PATROL_CAPTAIN and WITHER_ROSE
9c1fa040 #467: Add method to remove a recipe by its key
3961d1aa Add nb-configuration.xml to .gitignore
CraftBukkit Changes:
d70084e5 Remove unused seed in CustomChunkGenerator
8a66d4c7 #619: Allow delegation of certain elements to Vanilla when using a custom ChunkGenerator
c2dc19d3 Craftbukkit -> CraftBukkit
ae45e092 SPIGOT-5559: Add EntityPotionEffectEvent causes for bee, raiders and wither rose
00980376 #618: Add method to remove a recipe by its key
Spigot Changes:
c574e08b Rebuild patches
13c24cc4 Rebuild patches