Bukkit events - which are main-thread only?

As some may know, NoLagg offers a warning message when events are called from a thread other than the main thread to help explain various errors and odd behaviour.

In the newest build(s) a new Event handler got introduced (which is a lot better). I now have the option to listen for all events (including custom types) to check if they are on the main thread, or to listen only for certain events.

Which events can be considered main-thread only? Which events can be considered coming from different threads? In other words: which events require synchronization by the developer, and which don't?

This is a semi-development question, but I feel it's better to post here since it is more related to Bukkit itself than plugin development.

Events I consider main-thread only:

Code:

PLAYER_JOIN
PLAYER_QUIT
PLAYER_KICK
PLAYER_MOVE
PLAYER_TELEPORT
PLAYER_CHANGED_WORLD
PLAYER_ITEM_HELD
BLOCK_PHYSICS
BLOCK_FROMTO
REDSTONE_CHANGE
CREATURE_SPAWN
ITEM_SPAWN
PAINTING_BREAK
PAINTING_PLACE
CHUNK_LOAD
CHUNK_UNLOAD
WORLD_LOAD
CHUNK_POPULATED
WORLD_UNLOAD
WORLD_INIT
WORLD_SAVE
SPAWN_CHANGE

 

bergerkiller
The only async one I can think of is onPlayerLoginPreprocess