ConfigManager NPE

I have a NPE in my config manager class on line 18 which is:

Code:

public static List<Integer> i = plugin.getConfig().getIntegerList("Items");

Here is the rest of my code:

Code:

package me.superchris05326.loot;

import java.util.List;
import java.util.Random;

import org.bukkit.Material;
import org.bukkit.inventory.ItemStack;
import org.bukkit.plugin.Plugin;

public class ConfigManager {
   
    public static Plugin plugin;
   
    public ConfigManager(Plugin plugin){
        this.plugin = plugin;
    }
   
    public static List<Integer> i = plugin.getConfig().getIntegerList("Items");
   
    public static ItemStack getRandomItem(){
        Random random = new Random();
        int rn = random.nextInt(i.size());
        return new ItemStack(Material.getMaterial(i.get(rn)));
    }
}

As well as my configuration file:

Code:

Items:
  - 311
  - 276
  - 278

 

@superchris05326

Why is everything static......? That's why you're having all these issues. Make the fields private and non-static, then initilise them in the constructor.

 

If it's not static all of my methods become errored out.
@mythbusterma

 

@superchris05326 Java is an Object Oriented Programming language. Learn to program by OOP and NPEs just become an easy-to-fix dumb mistake.

http://bukkit.org/threads/static-object-of-main-class.338854/#post-3001984

 

@superchris05326 Then you need to learn java.

For your issue, plugin is null.