Create a list of UUIDs, save it to a file, then load it again

Here is my code:

Code (open) Code (close)

Code:java

package me.marti.2001.deathzombies;
 
import java.util.ArrayList;
import java.util.List;
import java.util.UUID;
 
import org.bukkit.ChatColor;
import org.bukkit.Material;
import org.bukkit.entity.Entity;
import org.bukkit.entity.EntityType;
import org.bukkit.entity.LivingEntity;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.entity.EntityDeathEvent;
import org.bukkit.event.entity.PlayerDeathEvent;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.SkullMeta;
import org.bukkit.plugin.PluginManager;
import org.bukkit.plugin.java.JavaPlugin;
import org.bukkit.potion.PotionEffect;
import org.bukkit.potion.PotionEffectType;
 
public class Main extends JavaPlugin implements Listener {
 
public void onEnable(){
PluginManager pm = getServer().getPluginManager();
pm.registerEvents(this, this);
getConfig().options().copyDefaults(true);
saveConfig();
for (String string: strs) {
uuids.add(UUID.fromString(string));
}
}
 
List<String> strs = getConfig().getStringList("zombiesUUID");
List<UUID> uuids= new ArrayList<UUID>();
 
public void onDisable(){
strs.add(uuids.toString());
getConfig().set("zombiesUUID", strs);
}
private ItemStack head(String name){
ItemStack skull = new ItemStack(Material.SKULL_ITEM, 1);
skull.setDurability((short)3);
SkullMeta meta = (SkullMeta)skull.getItemMeta();
meta.setOwner(name);
skull.setItemMeta(meta);
return skull;
}
 
@EventHandler
public void onPlayerDeath(PlayerDeathEvent e){
Entity zombie1 = e.getEntity().getPlayer().getWorld().spawnEntity(e.getEntity().getPlayer().getLocation(), EntityType.ZOMBIE);
LivingEntity zombie2 = (LivingEntity) zombie1;
uuids.add(zombie2.getUniqueId());
zombie2.addPotionEffect(new PotionEffect(PotionEffectType.DAMAGE_RESISTANCE, Integer.MAX_VALUE, 3));
zombie2.addPotionEffect(new PotionEffect(PotionEffectType.REGENERATION, Integer.MAX_VALUE, 1));
zombie2.addPotionEffect(new PotionEffect(PotionEffectType.INCREASE_DAMAGE, Integer.MAX_VALUE, 2));
zombie2.setCustomName(ChatColor.RED + e.getEntity().getPlayer().getDisplayName());
e.getEntity().getPlayer().sendMessage(ChatColor.DARK_GRAY+"[Zombie] " + ChatColor.GRAY + "A zombie has been spawned on X: " + zombie2.getLocation().getBlockX() + ", Y: " + zombie2.getLocation().getBlockY() + ", Z:" + zombie2.getLocation().getBlockZ() + ".");
zombie2.getEquipment().setHelmet(head(e.getEntity().getPlayer().getName()));
zombie2.getEquipment().setHelmetDropChance(0);
if(e.getEntity().getPlayer().getInventory().getChestplate() != null){
zombie2.getEquipment().setChestplate(e.getEntity().getPlayer().getEquipment().getChestplate());
zombie2.getEquipment().setChestplateDropChance(0);
}
if(e.getEntity().getPlayer().getInventory().getLeggings() != null){
zombie2.getEquipment().setLeggings(e.getEntity().getPlayer().getEquipment().getLeggings());
zombie2.getEquipment().setLeggingsDropChance(0);
}
if(e.getEntity().getPlayer().getInventory().getBoots() != null){
zombie2.getEquipment().setBoots(e.getEntity().getPlayer().getEquipment().getBoots());
zombie2.getEquipment().setBootsDropChance(0);
}
if(e.getEntity().getPlayer().getInventory().getItemInHand() != null){
zombie2.getEquipment().setItemInHand(e.getEntity().getPlayer().getEquipment().getItemInHand());
zombie2.getEquipment().setItemInHandDropChance(0);
}
 
}
@EventHandler
public void onEntityDeath(EntityDeathEvent e){
if(e.getEntity().getType().equals(EntityType.ZOMBIE) && e.getEntity().getKiller() instanceof Player && uuids.contains(e.getEntity().getUniqueId())){
uuids.remove(e.getEntity().getUniqueId());
e.setDroppedExp(150);
e.getEntity().getKiller().setHealth(1);
e.getEntity().getKiller().addPotionEffect(new PotionEffect(PotionEffectType.BLINDNESS, 400, 2));
e.getEntity().getKiller().addPotionEffect(new PotionEffect(PotionEffectType.CONFUSION, 400, 2));
e.getEntity().getKiller().addPotionEffect(new PotionEffect(PotionEffectType.SLOW, 400, 3));
}
}
 
}
 

 

marti.2001 what is line 29 doing? and secondly your declaring a variable outside of the on enable class (lines 36 & 37). put these in your on enable under the save config on line 30. you are trying to load something from the config before the files has been created.

Do this and then see if there are any more errors

 

NoLiver92 When I move lines 36 and 37 in onEnable() under saveConfig, Eclipse tells me there are errors. When I move them back and delete line 29, I get "File cannot be null" again

 

what are the errors? they should either be prefixed with public or private or moved inside a function. if you can post the error stack trace here it might help a bit more.

 

NoLiver92 here's the error:

Error (open) Error (close)

Code:

org.bukkit.plugin.InvalidPluginException: java.lang.IllegalArgumentException: File cannot be null
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:182)
    at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:305)
    at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:230)
    at org.bukkit.craftbukkit.v1_5_R2.CraftServer.loadPlugins(CraftServer.java:239)
    at org.bukkit.craftbukkit.v1_5_R2.CraftServer.reload(CraftServer.java:603)
    at org.bukkit.Bukkit.reload(Bukkit.java:184)
    at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:23)
    at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:188)
    at org.bukkit.craftbukkit.v1_5_R2.CraftServer.dispatchCommand(CraftServer.java:523)
    at org.bukkit.craftbukkit.v1_5_R2.CraftServer.dispatchServerCommand(CraftServer.java:512)
    at net.minecraft.server.v1_5_R2.DedicatedServer.am(DedicatedServer.java:261)
    at net.minecraft.server.v1_5_R2.DedicatedServer.r(DedicatedServer.java:226)
    at net.minecraft.server.v1_5_R2.MinecraftServer.q(MinecraftServer.java:474)
    at net.minecraft.server.v1_5_R2.MinecraftServer.run(MinecraftServer.java:407)
    at net.minecraft.server.v1_5_R2.ThreadServerApplication.run(SourceFile:573)
Caused by: java.lang.IllegalArgumentException: File cannot be null
    at org.apache.commons.lang.Validate.notNull(Validate.java:203)
    at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:170)
    at org.bukkit.plugin.java.JavaPlugin.reloadConfig(JavaPlugin.java:117)
    at org.bukkit.plugin.java.JavaPlugin.getConfig(JavaPlugin.java:111)
    at me.marti201.zombipriumirane.Main.<init>(Main.java:35)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    at java.lang.reflect.Constructor.newInstance(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:178)
    ... 14 more

 

this is the error:

Code:

List<String> strs = getConfig().getStringList("zombiesUUID");
List<UUID> uuids= new ArrayList<UUID>();

you must put this in the on enable or put public or private before it. the best bet as its calling the config is to put it in the main:

Code:

public void onEnable(){
PluginManager pm = getServer().getPluginManager();
pm.registerEvents(this, this);
saveDefaultConfig();
List<String> strs = getConfig().getStringList("zombiesUUID");
List<UUID> uuids= new ArrayList<UUID>();
for (String string: strs) {
uuids.add(UUID.fromString(string));
}
}

Note also in the config.yml inside your developer (in eclipse its in the project folder navigaton bar) MUST HAVE

Otherwise you wont get anything as it will come back empty. change your on enable to the one i posted and delete lines 36 & 37. once done if you get errors repost your code and any error stack trace you have

 

NoLiver92
If I use your onEnable(), eclipse tells me there are many errors.
If I put public or private before line 36 & 37, I get the same error as the previous one.

 

ok well tell me what there errors are, i cant help unless you actually state the errors

 

the errors are the same as these

 

these are the errors i am after, once you changed the code the error stack trace will be diffrent (it may not seem like it but the line numbers telling you where the errors are will be diffrent).

In eclipse when you use my on enable and delete lines 36&37 do you get lots of red lines everywhere?

 

Ok, the errors are:

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Code:

2013-04-05 11:32:33 [SEVERE] Could not load 'plugins\DeathZombies.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.IllegalArgumentException: File cannot be null
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:182)
    at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:305)
    at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:230)
    at org.bukkit.craftbukkit.v1_5_R2.CraftServer.loadPlugins(CraftServer.java:239)
    at org.bukkit.craftbukkit.v1_5_R2.CraftServer.<init>(CraftServer.java:217)
    at net.minecraft.server.v1_5_R2.PlayerList.<init>(PlayerList.java:55)
    at net.minecraft.server.v1_5_R2.DedicatedPlayerList.<init>(SourceFile:11)
    at net.minecraft.server.v1_5_R2.DedicatedServer.init(DedicatedServer.java:105)
    at net.minecraft.server.v1_5_R2.MinecraftServer.run(MinecraftServer.java:379)
    at net.minecraft.server.v1_5_R2.ThreadServerApplication.run(SourceFile:573)
Caused by: java.lang.IllegalArgumentException: File cannot be null
    at org.apache.commons.lang.Validate.notNull(Validate.java:203)
    at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:170)
    at org.bukkit.plugin.java.JavaPlugin.reloadConfig(JavaPlugin.java:117)
    at org.bukkit.plugin.java.JavaPlugin.getConfig(JavaPlugin.java:111)
    at me.marti.2001.deathzombies.Main.<init>(Main.java:35)   //Line 35 is  public List<String> strs = getConfig().getStringList("zombiesUUID");
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    at java.lang.reflect.Constructor.newInstance(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:178)
    ... 9 more

I get red lines where I use "uuids".

 

hover over the red lines and see what they say (you might have to import some items etc) clear the red errors from eclipse. then you will hopefully get somewhere.

also is the key and a default list in the config file when it loads. if the key and list are not in the default config when you run the plugin it could also cause this error

 

NoLiver92 In onEnable it says 'Public is not permitted'. The other underlined things say 'uuids/strs can't be resolved'

 

hang on, post your on enable code here

 

NoLiver92

Code:

public void onEnable(){ PluginManager pm = getServer().getPluginManager();
pm.registerEvents(this, this);
saveDefaultConfig();
List<String> strs = getConfig().getStringList("zombiesUUID"); List<UUID> uuids= new ArrayList<UUID>();
for (String string: strs) {
uuids.add(UUID.fromString(string));
}
}

 

ok well im slightly stumped at this. Not entirely sure whats wrong

 

marti.2001 Try moving "List<String> strs = getConfig().getStringList("zombiesUUID"); List<UUID> uuids= new ArrayList<UUID>();" out of your onEnable()

 

ClassyInvader69 don't necropost

 

fireblast709 Sorry, did not see date...