Null Pointer Exception

Whenever I run my plugin on my server its fine until I perform the command. It gives me a null pointer exception.
Code (Main Class):

Code:java

package me.zakarls.ranks;
 
import java.util.List;
import java.util.logging.Logger;
 
import org.bukkit.ChatColor;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.plugin.PluginDescriptionFile;
import org.bukkit.plugin.java.JavaPlugin;
 
public class Ranks extends JavaPlugin {
    public final Logger logger = Logger.getLogger("Minecraft");
    public static Ranks plugin;
 
    @Override
    public void onDisable() {
        PluginDescriptionFile pdfFile = this.getDescription();
        this.logger.info(pdfFile.getName() + " Has Been Disabled!");
    }
 
    @Override
    public void onEnable() {
        PluginDescriptionFile pdfFile = this.getDescription();
        this.logger.info(pdfFile.getName() + " Version " + pdfFile.getVersion()
                + " Has Been Enabled!");
        getConfig().options().copyDefaults(true);
        saveConfig();
    }
 
    public boolean onCommand(CommandSender sender, Command cmd,
            String commandLabel, String[] args) {
        Player player = (Player) sender;
        if (commandLabel.equalsIgnoreCase("ranks")) {
            if (player.hasPermission("ranks.use") || player.isOp()) {           
                List<String> rank = plugin.getConfig().getStringList("Ranks");
                for (String ranks : rank) {
                    player.sendMessage(ranks);
                }   
            }
            else{
                player.sendMessage(ChatColor.RED + "You Do Not Have Permission For This Command");
            }
        }
        return false;
    }
}

plugin.yml:

Code:

name: Ranks
main: me.zakarls.ranks.Ranks
version: 1.2
description: >
            Rank List Plugin
commands:
  ranks:
    description: Lists Ranks
permissions:
  ranks.use:
    description: User-friendly description
    default: op

config.yml:

Code:

########################################################################################
#                        Ranks By Zakarls                                            #
#This is exactly what will display in the message so if you want to add $, do it here. #
#                                                                                      #
########################################################################################
Ranks:
- A
- B
- C

Error:

Code:

org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[craftbukkit_beta.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
01.06 14:40:03 [Server] INFO at me.zakarls.ranks.Ranks.onCommand(Ranks.java:37) ~[?:?]
01.06 14:40:03 [Server] INFO Caused by: java.lang.NullPointerException
01.06 14:40:03 [Server] INFO at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [craftbukkit_beta.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
01.06 14:40:03 [Server] INFO at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:457) [craftbukkit_beta.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
01.06 14:40:03 [Server] INFO at net.minecraft.server.v1_7_R1.MinecraftServer.t(MinecraftServer.java:545) [craftbukkit_beta.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
01.06 14:40:03 [Server] INFO at net.minecraft.server.v1_7_R1.DedicatedServer.u(DedicatedServer.java:250) [craftbukkit_beta.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
01.06 14:40:03 [Server] INFO at net.minecraft.server.v1_7_R1.MinecraftServer.u(MinecraftServer.java:655) [craftbukkit_beta.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
01.06 14:40:03 [Server] INFO at net.minecraft.server.v1_7_R1.ServerConnection.c(SourceFile:134) [craftbukkit_beta.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
01.06 14:40:03 [Server] INFO at net.minecraft.server.v1_7_R1.NetworkManager.a(NetworkManager.java:146) [craftbukkit_beta.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
01.06 14:40:03 [Server] INFO at net.minecraft.server.v1_7_R1.PacketPlayInChat.handle(PacketPlayInChat.java:47) [craftbukkit_beta.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
01.06 14:40:03 [Server] INFO at net.minecraft.server.v1_7_R1.PacketPlayInChat.a(PacketPlayInChat.java:28) [craftbukkit_beta.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
01.06 14:40:03 [Server] INFO at net.minecraft.server.v1_7_R1.PlayerConnection.a(PlayerConnection.java:814) [craftbukkit_beta.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
01.06 14:40:03 [Server] INFO at net.minecraft.server.v1_7_R1.PlayerConnection.handleCommand(PlayerConnection.java:952) [craftbukkit_beta.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
01.06 14:40:03 [Server] INFO at org.bukkit.craftbukkit.v1_7_R1.CraftServer.dispatchCommand(CraftServer.java:683) ~[craftbukkit_beta.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
01.06 14:40:03 [Server] INFO at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:175) ~[craftbukkit_beta.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
01.06 14:40:03 [Server] INFO at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[craftbukkit_beta.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
01.06 14:40:03 [Server] INFO org.bukkit.command.CommandException: Unhandled exception executing command 'ranks' in plugin Ranks v1.2
01.06 14:40:03 [Server] ERROR null
01.06 14:40:03 [Server] INFO zakarls: Reload complete.
01.06 14:40:03 [Server] INFO Server permissions file permissions.yml is empty, ignoring it
01.06 14:40:03 [Server] INFO Ranks Version 1.2 Has Been Enabled!
01.06 14:40:03 [Server] INFO Enabling Ranks v1.2
01.06 14:40:03 [Server] INFO Loading Ranks v1.2
01.06 14:40:03 [Server] INFO Ranks Has Been Disabled!
01.06 14:40:03 [Server] INFO Disabling Ranks v1.2
01.06 14:37:35 [Server] INFO World saved.
01.06 14:37:35 [Server] INFO CONSOLE: Forcing save..
01.06 14:37:35 [Server] INFO CONSOLE: Enabled level saving..
01.06 14:37:35 [Multicraft] Auto-saving world...
01.06 14:35:56 [Server] INFO ... 13 more
01.06 14:35:56 [Server] INFO at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[craftbukkit_beta.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
01.06 14:35:56 [Server] INFO at me.zakarls.ranks.Ranks.onCommand(Ranks.java:38) ~[?:?]
01.06 14:35:56 [Server] INFO Caused by: java.lang.NullPointerException
01.06 14:35:56 [Server] INFO at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [craftbukkit_beta.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
01.06 14:35:56 [Server] INFO at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:457) [craftbukkit_beta.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
01.06 14:35:56 [Server] INFO at net.minecraft.server.v1_7_R1.MinecraftServer.t(MinecraftServer.java:545) [craftbukkit_beta.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
01.06 14:35:56 [Server] INFO at net.minecraft.server.v1_7_R1.DedicatedServer.u(DedicatedServer.java:250) [craftbukkit_beta.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
01.06 14:35:56 [Server] INFO at net.minecraft.server.v1_7_R1.MinecraftServer.u(MinecraftServer.java:655) [craftbukkit_beta.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
01.06 14:35:56 [Server] INFO at net.minecraft.server.v1_7_R1.ServerConnection.c(SourceFile:134) [craftbukkit_beta.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
01.06 14:35:56 [Server] INFO at net.minecraft.server.v1_7_R1.NetworkManager.a(NetworkManager.java:146) [craftbukkit_beta.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
01.06 14:35:56 [Server] INFO at net.minecraft.server.v1_7_R1.PacketPlayInChat.handle(PacketPlayInChat.java:47) [craftbukkit_beta.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
01.06 14:35:56 [Server] INFO at net.minecraft.server.v1_7_R1.PacketPlayInChat.a(PacketPlayInChat.java:28) [craftbukkit_beta.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
01.06 14:35:56 [Server] INFO at net.minecraft.server.v1_7_R1.PlayerConnection.a(PlayerConnection.java:814) [craftbukkit_beta.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
01.06 14:35:56 [Server] INFO at net.minecraft.server.v1_7_R1.PlayerConnection.handleCommand(PlayerConnection.java:952) [craftbukkit_beta.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
01.06 14:35:56 [Server] INFO at org.bukkit.craftbukkit.v1_7_R1.CraftServer.dispatchCommand(CraftServer.java:683) ~[craftbukkit_beta.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
01.06 14:35:56 [Server] INFO at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:175) ~[craftbukkit_beta.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
01.06 14:35:56 [Server] INFO at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[craftbukkit_beta.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
01.06 14:35:56 [Server] INFO org.bukkit.command.CommandException: Unhandled exception executing command 'ranks' in plugin Ranks v1.2
01.06 14:35:56 [Server] ERROR null

 

Have read the stacktrace? Did you check the line the error occurs?

 

Zupsub
It occurs on this line:

Code:java

 List<String> rank = plugin.getConfig().getStringList("Ranks");

 

It doesn't look like you ever assign anything to that always-problematic static Plugin instance. You also don't need it- remove "plugin" and use "this" instead, at least for now.

 

NathanWolf
I used this and the same thing happened

NathanWolf
I also removed the static plugin instance

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

Errrr I guess I don't know then! Check to make sure getConfig isn't returning null for some reason?