Creating custom yml files for each player

I have started to code the plugin the way that makes sense to me and I get this error and my source is provided below.

Code:

[22:09:39 ERROR]: Could not pass event PlayerJoinEvent to PlayerData2 v1.0.0-B1
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:305) ~[spigot.jar:git-Spigot-c3c767f-33d5de3]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot.jar:git-Spigot-c3c767f-33d5de3]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot.jar:git-Spigot-c3c767f-33d5de3]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [spigot.jar:git-Spigot-c3c767f-33d5de3]
        at net.minecraft.server.v1_8_R1.PlayerList.onPlayerJoin(PlayerList.java:272) [spigot.jar:git-Spigot-c3c767f-33d5de3]
        at net.minecraft.server.v1_8_R1.PlayerList.a(PlayerList.java:156) [spigot.jar:git-Spigot-c3c767f-33d5de3]
        at net.minecraft.server.v1_8_R1.LoginListener.b(LoginListener.java:109) [spigot.jar:git-Spigot-c3c767f-33d5de3]
        at net.minecraft.server.v1_8_R1.LoginListener.c(LoginListener.java:41) [spigot.jar:git-Spigot-c3c767f-33d5de3]
        at net.minecraft.server.v1_8_R1.NetworkManager.a(NetworkManager.java:159) [spigot.jar:git-Spigot-c3c767f-33d5de3]
        at net.minecraft.server.v1_8_R1.ServerConnection.c(ServerConnection.java:82) [spigot.jar:git-Spigot-c3c767f-33d5de3]
        at net.minecraft.server.v1_8_R1.MinecraftServer.z(MinecraftServer.java:800) [spigot.jar:git-Spigot-c3c767f-33d5de3]
        at net.minecraft.server.v1_8_R1.DedicatedServer.z(DedicatedServer.java:316) [spigot.jar:git-Spigot-c3c767f-33d5de3]
        at net.minecraft.server.v1_8_R1.MinecraftServer.y(MinecraftServer.java:634) [spigot.jar:git-Spigot-c3c767f-33d5de3]
        at net.minecraft.server.v1_8_R1.MinecraftServer.run(MinecraftServer.java:537) [spigot.jar:git-Spigot-c3c767f-33d5de3]
        at java.lang.Thread.run(Thread.java:722) [?:1.7.0_07]
Caused by: java.lang.NullPointerException
        at com.chaka15205.playerdata2.data.Data.<init>(Data.java:23) ~[?:?]
        at com.chaka15205.playerdata2.data.Manager.createPlayerData(Manager.java:19) ~[?:?]
        at com.chaka15205.playerdata2.listener.PlayerListener.onPlayerJoin(PlayerListener.java:22) ~[?:?]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_07]
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) ~[?:1.7.0_07]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.7.0_07]
        at java.lang.reflect.Method.invoke(Method.java:601) ~[?:1.7.0_07]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:301) ~[spigot.jar:git-Spigot-c3c767f-33d5de3]
        ... 14 more

The plugins source is here, https://github.com/OmniWorldMC/PlayerData2

 

Data is a class assigned for each player. You don't have to put static.
When you call the 'new data()' you call a new instance of this class.
That mean each player will have his own class. So call it in your onEnable is useless.

- plugin.saveResource(uuid + ".yml", true);
Just use the method createNewFile.

 

I have updated the code of the Data class.

I now get this exception on join.

Code:

[00:28:57 ERROR]: Could not pass event PlayerJoinEvent to PlayerData2 v1.0.0-B2
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:305) ~[spigot.jar:git-Spigot-c3c767f-33d5de3]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot.jar:git-Spigot-c3c767f-33d5de3]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot.jar:git-Spigot-c3c767f-33d5de3]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [spigot.jar:git-Spigot-c3c767f-33d5de3]
        at net.minecraft.server.v1_8_R1.PlayerList.onPlayerJoin(PlayerList.java:272) [spigot.jar:git-Spigot-c3c767f-33d5de3]
        at net.minecraft.server.v1_8_R1.PlayerList.a(PlayerList.java:156) [spigot.jar:git-Spigot-c3c767f-33d5de3]
        at net.minecraft.server.v1_8_R1.LoginListener.b(LoginListener.java:109) [spigot.jar:git-Spigot-c3c767f-33d5de3]
        at net.minecraft.server.v1_8_R1.LoginListener.c(LoginListener.java:41) [spigot.jar:git-Spigot-c3c767f-33d5de3]
        at net.minecraft.server.v1_8_R1.NetworkManager.a(NetworkManager.java:159) [spigot.jar:git-Spigot-c3c767f-33d5de3]
        at net.minecraft.server.v1_8_R1.ServerConnection.c(ServerConnection.java:82) [spigot.jar:git-Spigot-c3c767f-33d5de3]
        at net.minecraft.server.v1_8_R1.MinecraftServer.z(MinecraftServer.java:800) [spigot.jar:git-Spigot-c3c767f-33d5de3]
        at net.minecraft.server.v1_8_R1.DedicatedServer.z(DedicatedServer.java:316) [spigot.jar:git-Spigot-c3c767f-33d5de3]
        at net.minecraft.server.v1_8_R1.MinecraftServer.y(MinecraftServer.java:634) [spigot.jar:git-Spigot-c3c767f-33d5de3]
        at net.minecraft.server.v1_8_R1.MinecraftServer.run(MinecraftServer.java:537) [spigot.jar:git-Spigot-c3c767f-33d5de3]
        at java.lang.Thread.run(Thread.java:722) [?:1.7.0_07]
Caused by: java.lang.NullPointerException
        at com.chaka15205.playerdata2.data.Data.createNewDataFile(Data.java:21) ~[?:?]
        at com.chaka15205.playerdata2.data.Manager.createPlayerData(Manager.java:20) ~[?:?]
        at com.chaka15205.playerdata2.listener.PlayerListener.onPlayerJoin(PlayerListener.java:22) ~[?:?]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_07]
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) ~[?:1.7.0_07]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.7.0_07]
        at java.lang.reflect.Method.invoke(Method.java:601) ~[?:1.7.0_07]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:301) ~[spigot.jar:git-Spigot-c3c767f-33d5de3]
        ... 14 more

The source is in the same place

 

@Christophernjsp http://bukkit.org/threads/how-to-re...ubleshoot-your-own-plugins-by-yourself.32457/

 

Thanks for sending me that. I got the exceptions to go away. I might have a new problem now but I am going to try a few things before I post for help here.

No exceptions are thrown but the plugin never creates the files. or data folder.