Bukkit

What steps will reproduce the problem?
1. After clean install on 1.7 start server
2. Lotto works great until first draw
3. After first draw it will create a winner each time a player issues the /lottery command. It will pay out the balance of the first draw. In this case it drew 130 times with a pot of $44,000. Lotterywinners also weren't all recorded.

What is the expected output? What do you see instead?

What version of bukkit and lottery plugin are you using?
Spigot 1215
lottery v0.9.4

Are you using any economy plugins? If so, which?
hyperconomy/vault

Do you have an error log of what happened?

[12:13:18] [Server thread/INFO]: that1bigkid issued server command: /lottery
[12:13:18] [Server thread/WARN]: [Lottery] Task #76619 for Lottery v0.9.4 generated an exception
java.lang.NullPointerException
    at net.erbros.lottery.LotteryGame.getWinner(LotteryGame.java:411) ~[?:?]
    at net.erbros.lottery.Lottery.lotteryDraw(Lottery.java:164) ~[?:?]
    at net.erbros.lottery.LotteryDraw$1.run(LotteryDraw.java:29) ~[?:?]
    at org.bukkit.craftbukkit.v1_7_R1.scheduler.CraftTask.run(CraftTask.java:58) ~[spigot.jar:git-Spigot-1190]
    at org.bukkit.craftbukkit.v1_7_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:345) [spigot.jar:git-Spigot-1190]
    at net.minecraft.server.v1_7_R1.MinecraftServer.u(MinecraftServer.java:577) [spigot.jar:git-Spigot-1190]
    at net.minecraft.server.v1_7_R1.DedicatedServer.u(DedicatedServer.java:259) [spigot.jar:git-Spigot-1190]
    at net.minecraft.server.v1_7_R1.MinecraftServer.t(MinecraftServer.java:534) [spigot.jar:git-Spigot-1190]
    at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:446) [spigot.jar:git-Spigot-1190]
    at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [spigot.jar:git-Spigot-1190]

Please provide any additional information below.

Can you paste your Lottery config file here, thank you :)

This is likely due to HyperConomy, a economy plugin not directly supported by Vault. Do you have any other economy plugin installed?

@Erbros: Go Right now just hyperconomy

config:
  useiConomy: true
  cost: 250
  material: 266
  hours: 2
  broadcastBuying: true
  broadcastBuyingTime: 120
  welcomeMessage: true
  clearExtraInPot: true
  netPayout: 85
  taxTarget: '1'
  maxTicketsEachUser: 10
  numberOfTicketsAvailable: 0
  buyingExtend:
    enabled: true
    secondsRemaining: 30
    extendBase: 15
    extendMultiplier: 1.5
  nextexec: 1388164417977
  extraInPot: 0
  jackpot: 0
  debug: false

This is because you supplied an invalid tax target, the hypereconomy is bombing because it can't find an account called "1".

Added a check to prevent this in the future.

~ KHobbits.

@essentialsteam: Go

I was thinking about that, but I was of the impression that the hasAccount call would create the account if it didn't find one. Clearly I'm not into the code anymore ;)