org.bukkit.command.CommandException: Unhandled exception executing command 'sendmail' in plugin ChestMail v1.0.3
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[spigot-1.9-R0.1-SNAPSHOT.jar:git-Spigot-604e046-69e196f]
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) ~[spigot-1.9-R0.1-SNAPSHOT.jar:git-Spigot-604e046-69e196f]
	at org.bukkit.craftbukkit.v1_9_R1.CraftServer.dispatchCommand(CraftServer.java:645) ~[spigot-1.9-R0.1-SNAPSHOT.jar:git-Spigot-604e046-69e196f]
	at net.minecraft.server.v1_9_R1.PlayerConnection.handleCommand(PlayerConnection.java:1302) [spigot-1.9-R0.1-SNAPSHOT.jar:git-Spigot-604e046-69e196f]
	at net.minecraft.server.v1_9_R1.PlayerConnection.a(PlayerConnection.java:1137) [spigot-1.9-R0.1-SNAPSHOT.jar:git-Spigot-604e046-69e196f]
	at net.minecraft.server.v1_9_R1.PacketPlayInChat.a(PacketPlayInChat.java:45) [spigot-1.9-R0.1-SNAPSHOT.jar:git-Spigot-604e046-69e196f]
	at net.minecraft.server.v1_9_R1.PacketPlayInChat.a(PacketPlayInChat.java:1) [spigot-1.9-R0.1-SNAPSHOT.jar:git-Spigot-604e046-69e196f]
	at net.minecraft.server.v1_9_R1.PlayerConnectionUtils$1.run(SourceFile:13) [spigot-1.9-R0.1-SNAPSHOT.jar:git-Spigot-604e046-69e196f]
	at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_51]
	at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_51]
	at net.minecraft.server.v1_9_R1.SystemUtils.a(SourceFile:45) [spigot-1.9-R0.1-SNAPSHOT.jar:git-Spigot-604e046-69e196f]
	at net.minecraft.server.v1_9_R1.MinecraftServer.D(MinecraftServer.java:716) [spigot-1.9-R0.1-SNAPSHOT.jar:git-Spigot-604e046-69e196f]
	at net.minecraft.server.v1_9_R1.DedicatedServer.D(DedicatedServer.java:400) [spigot-1.9-R0.1-SNAPSHOT.jar:git-Spigot-604e046-69e196f]
	at net.minecraft.server.v1_9_R1.MinecraftServer.C(MinecraftServer.java:655) [spigot-1.9-R0.1-SNAPSHOT.jar:git-Spigot-604e046-69e196f]
	at net.minecraft.server.v1_9_R1.MinecraftServer.run(MinecraftServer.java:554) [spigot-1.9-R0.1-SNAPSHOT.jar:git-Spigot-604e046-69e196f]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_51]
Caused by: java.lang.NoSuchMethodError: org.bukkit.Server.getOnlinePlayers()[Lorg/bukkit/entity/Player;
	at com.gmail.scottmwoodward.chestmail.commands.SendMailCommand.mailPlayerItem(SendMailCommand.java:111) ~[?:?]
	at com.gmail.scottmwoodward.chestmail.commands.SendMailCommand.sendMail(SendMailCommand.java:89) ~[?:?]
	at com.gmail.scottmwoodward.chestmail.commands.SendMailCommand.execute(SendMailCommand.java:35) ~[?:?]
	at com.gmail.scottmwoodward.chestmail.handlers.CommandHandler.onCommand(CommandHandler.java:23) ~[?:?]
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[spigot-1.9-R0.1-SNAPSHOT.jar:git-Spigot-604e046-69e196f]
	... 15 more