I am experiencing a NullPointerExeption when adding a default/preset server to the server list. If you don't know what this means, the mod is adding a server by default into the user's server list when they run the mod.

Here is my code:

package com.geometrically.pixelmon;

import net.minecraft.client.multiplayer.ServerData;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.fml.common.Mod.EventHandler;
import net.minecraftforge.fml.common.Mod.Instance;
import net.minecraftforge.fml.common.event.FMLInitializationEvent;
import net.minecraftforge.fml.common.event.FMLPostInitializationEvent;
import net.minecraftforge.fml.common.event.FMLPreInitializationEvent;

@Mod(modid = Pixelmon.MODID, name = Pixelmon.MODNAME, version = Pixelmon.VERSION)
public class Pixelmon {

    public static final String MODID = "Pixelmon";
    public static final String MODNAME = "Pixelmon";
    public static final String VERSION = "1.0.0";
    private ServerData pokeServerData;
    public static String pokeName = "PokeFiesta";
    public static String pokeIP = "play.pokefiesta.org";

    @Instance
    public static Pixelmon instance = new Pixelmon();

    @EventHandler
    public void preInit(FMLPreInitializationEvent e) {
    }

    @EventHandler
    public void init(FMLInitializationEvent e) {
    	this.pokeServerData.serverName = "PokeFiesta";
    	this.pokeServerData.serverIP = "play.pokefiesta.org";
    }

    @EventHandler
    public void postInit(FMLPostInitializationEvent e) {
    }
}

The places where the server is being defined are lines 17-19 and 30-31.

Lines 30-31 are where the NullPointerExeption is being caught.

 

Thanks for helping!

https://stackoverflow.com/questions/218384/what-is-a-nullpointerexception-and-how-do-i-fix-it

 

private ServerData pokeServerData;

 

You never set this to anything.

On 8/3/2017 at 9:16 PM, Draco18s said:

https://stackoverflow.com/questions/218384/what-is-a-nullpointerexception-and-how-do-i-fix-it

 

private ServerData pokeServerData;

 

You never set this to anything.

I did this and I don't get any more NullPointerExeptions but the server is not being added to the server list. Could you tell me why? Here is my code:

Spoiler

package com.geometrically.pixelmon;

import net.minecraft.client.multiplayer.ServerData;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.fml.common.Mod.EventHandler;
import net.minecraftforge.fml.common.Mod.Instance;
import net.minecraftforge.fml.common.event.FMLInitializationEvent;
import net.minecraftforge.fml.common.event.FMLPostInitializationEvent;
import net.minecraftforge.fml.common.event.FMLPreInitializationEvent;

@Mod(modid = Pixelmon.MODID, name = Pixelmon.MODNAME, version = Pixelmon.VERSION)
public class Pixelmon {

    public static final String MODID = "Pixelmon";
    public static final String MODNAME = "Pixelmon";
    public static final String VERSION = "1.0.0";
    private ServerData pokeFiesta = new ServerData(pokeName, pokeIP, false);
    public static String pokeName = "PokeFiesta";
    public static String pokeIP = "play.pokefiesta.org";

    @Instance
    public static Pixelmon instance = new Pixelmon();

    @EventHandler
    public void preInit(FMLPreInitializationEvent e) {
    }

    @EventHandler
    public void init(FMLInitializationEvent e) {
    	this.pokeFiesta.serverName = "PokeFiesta";
    	this.pokeFiesta.serverIP = "play.pokefiesta.org";
    }

    @EventHandler
    public void postInit(FMLPostInitializationEvent e) {
    }
}

 

 

Edited August 5, 20178 yr by Geometrically

You're not doing anything to get that information into the server list. You're setting a name and address (twice, I might add). But that's it.

13 minutes ago, Draco18s said:

You're not doing anything to get that information into the server list. You're setting a name and address (twice, I might add). But that's it.

How do I do so? Do I have to write it directly in the NBT file format into servers.dat or do I have to do something else.

 

EDIT: I found this piece of code in the Adding Multiplayer GUI, I'll test to see if it works

 this.savedServerList.addServerData(this.selectedServer);
                this.savedServerList.saveServerList();
                this.serverListSelector.setSelectedSlotIndex(-1);
                this.serverListSelector.updateOnlineServers(this.savedServerList);

 

Edited August 5, 20178 yr by Geometrically

Pixelmon got shutdown stop trying to exploit its fame and little kids to advertise your server.