Getting config list returns [null]

I've made a SerializableLocation class:

Code:java

package io.github.tubakyle.clashjoin;
import org.bukkit.Bukkit;
import org.bukkit.Location;
import org.bukkit.configuration.serialization.ConfigurationSerializable;
 
import java.util.HashMap;
import java.util.Map;
 
public class SerializableLocation implements ConfigurationSerializable {
    private String worldName;
    private double x, y, z;
 
    public SerializableLocation(Location location) {
        this(location.getWorld().getName(), location.getX(), location.getY(), location.getZ());
    }
 
    public SerializableLocation(String worldName, double x, double y, double z) {
        this.worldName = worldName;
        this.x = x;
        this.y = y;
        this.z = z;
    }
 
    public Location getLocation() {
        return new Location(Bukkit.getWorld(worldName), x, y, z);
    }
 
    public void setWorldName(String worldName) {
        this.worldName = worldName;
    }
 
    public void setX(double x) {
        this.x = x;
    }
 
    public void setY(double y) {
        this.y = y;
    }
 
    public void setZ(double z) {
        this.z = z;
    }
 
    public double getX() {
        return x;
    }
 
    public double getY() {
        return y;
    }
 
    public double getZ() {
        return z;
    }
 
    public String getWorldName() {
        return worldName;
    }
 
    @Override
    public Map<String, Object> serialize() {
        Map<String, Object> map = new HashMap<String, Object>(4);
 
        map.put("world", worldName);
        map.put("x", x);
        map.put("y", y);
        map.put("z", z);
 
        return map;
    }
}
 

When saving a List<SerializableLocation> to the config, everything works fine.
Here's the config after testing a sign:

Code:

signs:
- ==: io.github.tubakyle.clashjoin.SerializableLocation
  x: 10.0
  y: 125.0
  z: 2.0
  world: world

Here's a part of onEnable:

Code:java

private List<SerializableLocation> signs;
signs = new ArrayList<SerializableLocation>();
        if(getConfig().isList("signs")) {
            getLogger().info(getConfig().get("signs").toString());
            getLogger().info(((List<SerializableLocation>) getConfig().getList("signs")).toString());
            List<SerializableLocation> serializedLocations = (List<SerializableLocation>) getConfig().getList("signs");
            for (SerializableLocation serializedLocation : serializedLocations) {
                getLogger().info(signs.toString());
                signs.add(serializedLocation);
                getLogger().info(signs.toString());
            }
        }

Console output with above config:

Code:

4:04:44 PM ClashJoin: [null]
4:04:44 PM ClashJoin: [null]
 
4:04:44 PM ClashJoin: []
4:04:44 PM ClashJoin: [null]

Why would the list be [null] when it contains items?

xTigerRebornx You're good at this kind of stuff. Any clues as to what's wrong?

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

 

kps1796 Post your full main class.

 

Here are my three classes, ClashJoin.java is the main one:
https://github.com/tubakyle/ClashJoin/tree/master/src/main/java/io/github/tubakyle/clashjoin

xTigerRebornx

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

 

kps1796 Did you run the test when there was no config generated yet?

 

Well I just tried that and I get a NullPointerException.
EDIT: It only needs to work when the config is generated

xTigerRebornx

Code:java

getLogger().info(getConfig().toString())

returns

Code:

YamlConfiguration[path='', root='YamlConfiguration']

a blank config?
it isn't blank.

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

 

kps1796 You just called toString() on the config, get the keys and loop through those, printing each element

 

xTigerRebornx It doesn't show any keys after "signs"

xTigerRebornx It all of a sudden started working! Thanks for the help.

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