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
BungeeCord Changes:
6f7331e8 #3138, 3140: Check for the new leak detector netty flag
1b489bcc Attempt to fix java 8 native crash
da27924a #3115, #3125: Update natives build script, switch to Cloudflare zlib
15b39887 #3133: Directly disconnect on illegal chars
f9583a76 #3129: Replace ConnectTimeoutException with a more user-friendly string.
cb738188 #3126: Use suppliers instead of reflection for native impl generation.
a8b2f526 #3123: Apply exact vanilla string length limits for tab completion
ad50fc9a #3111: Check chat for illegal chars & moved length check into the packet class
This patch was heavily intented to fix a server side issue which
is generally no longer relevant, not to mention the cost of interning
only cements this patch into it's grave
