What to do and what NOT to do in Bukkit

Here is a list of things that you can and can't do in Bukkit. Basically the community guide to thread and plugin safety. The list is pretty small, but I am hoping you can expand it.

What not to do

• Kick player async (including chat!)
• Teleport player on join
• Kick player on join

Thread Safe Methods

• Bukkit.getServer()
• CommandSender.sendMessage()
• Entity.getEntityId()
• Entity.getUniqueId()
• BukkitScheduler.*
• Server.getBukkitVersion()
• Server.getPlayers()
• World.getUID()
• World.getMaxHeight()
• World.getSeed()

 

Do NOT: Manipulate blocks from an async thread.

 

What's the problem with kicking a player on join? A bunch of servers do that, and doesn't the default minecraft server whitelist?

 

Thats not using the event though.

 

I usually kick them from PlayerPreLoginEvent, is that the right event to use?

 

or use
event.setKickMessage("Nope u dope");
event.setResult(Result.KICK_WHITELIST);

 

Yeah, that's what I meant