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:
bb813f6f SPIGOT-4605: Warn against hacking physics
CraftBukkit Changes:
2ced0233 Don't handle sync packets for kicked players
d5e96882 SPIGOT-4602: Cache reflection in decompile error workaround
Spigot Changes:
b0f4c22b SPIGOT-4605: Catch more physics problems
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:
78568d11 Tweak Block.getTemperature to return actual block temperature
9ad459ca SPIGOT-2151: Add support for getting simple bounding box of a block
ad28b19f Add BlockData#getAsString(boolean) to hide unspecified states
CraftBukkit Changes:
1b982fd6 Tweak Block.getTemperature to return actual block temperature
f55c8191 SPIGOT-2151: Add support for getting simple bounding box of a block
4b843638 Add BlockData#getAsString(boolean) to hide unspecified states
Spigot Changes:
573cdf2c BUILDTOOLS-425: Disable commit.gpgSign in applyPatches.sh
667bdd6b Deprecate Spigot version of Entity.isInvulnerable
This branch/commit is only useful to those who purely use a clean Bukkit/Spigot/Paper API
and does not use NMS/OBC references.
This will let you start updating your plugin to the latest 1.13 builds of Bukkit Preview (4 as of now)
Note that this release is not final!!! API breakages may occur!
It is up to you if you find use out of this work.