Solved I cant load my plugin = org.bukkit.plugin.InvalidPluginException

Every time I want to start up my plugin, I get this error. I searched on the web, but I cant get what I did wrong! Also, there are no errors in Eclipse.

This is the error I get in the console:

Console error (open) Console error (close)

[SEVERE] Could not load 'plugins\Pipeweed_V0.1.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.InstantiationException
at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:184)
at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:305)
at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:230)
at org.bukkit.craftbukkit.v1_4_6.CraftServer.loadPlugins(CraftServer.java:239)
at org.bukkit.craftbukkit.v1_4_6.CraftServer.<init>(CraftServer.java:217)
at net.minecraft.server.v1_4_6.PlayerList.<init>(PlayerList.java:52)
at net.minecraft.server.v1_4_6.DedicatedPlayerList.<init>(SourceFile:11)
at net.minecraft.server.v1_4_6.DedicatedServer.init(DedicatedServer.java:104)
at net.minecraft.server.v1_4_6.MinecraftServer.run(MinecraftServer.java:399)
at net.minecraft.server.v1_4_6.ThreadServerApplication.run(SourceFile:849)
Caused by: java.lang.InstantiationException
at sun.reflect.InstantiationExceptionConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:178)
... 9 more

In the plugin, I have 2 classes, 1 listener and 1 plugin class.

This is my Plugin code:

Plugin (open) Plugin (close)

Code:

package com.gmail.Birdytrap.Pipeweed;
 
 
import java.util.List;
 
import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.Material;
import org.bukkit.entity.Player;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.ShapedRecipe;
import org.bukkit.plugin.java.JavaPlugin;
 
import com.gmail.Birdytrap.Pipeweed.PipeweedListener;
 
public abstract class PipeweedPlugin extends JavaPlugin implements Runnable {
    public static String PipeLore = ChatColor.GOLD + "A pipe used to smoke pipewee.";
    PipeweedListener listener;
 
    ShapedRecipe recipePipe, recipePipeweed;
 
    @Override
    public void onEnable() {
        Bukkit.getPluginManager().registerEvents(listener = new PipeweedListener(this), this);
     
 
        Bukkit.addRecipe(recipePipe = new ShapedRecipe(new ItemStack(Material.STICK, 1)).shape("  ","  #","@@@").setIngredient('@', Material.STICK).setIngredient('#', Material.WOOD));
        Bukkit.addRecipe(recipePipeweed = new ShapedRecipe(new ItemStack(Material.WHEAT, 1)).shape("@#@","#@#","@#@").setIngredient('@', Material.WHEAT).setIngredient('#', Material.SEEDS));
        Bukkit.getScheduler().runTaskTimer(this, this, 20, 20);
        getLogger().info(ChatColor.GOLD + "Pipweeed version 0.1 has been enabled");
}
    @Override
    public void onDisable() {
        Bukkit.getScheduler().cancelTasks(this);
        getLogger().info(ChatColor.GOLD + "Pipeweed version 0.1 has been disabled");
    }
    public boolean playerHasPipeInHand(Player player) {
        return isPipe(player.getItemInHand());
    }
     
    public boolean isPipe(ItemStack stack) {
        if (stack != null) {
            List<String> lore = stack.getItemMeta().getLore();
            if (lore != null) {
                if (lore.size() == 1) {
                        return lore.get(0).equals(PipeLore);
}
            }
        }
        return false;
    }
}

This is the code im my Listener:

Listener (open) Listener (close)

Code:

package com.gmail.Birdytrap.Pipeweed;
 
import java.util.Arrays;
 
import org.bukkit.ChatColor;
import org.bukkit.Effect;
import org.bukkit.Material;
import org.bukkit.enchantments.Enchantment;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.block.Action;
import org.bukkit.event.inventory.PrepareItemCraftEvent;
import org.bukkit.event.player.PlayerInteractEvent;
import org.bukkit.inventory.CraftingInventory;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.Recipe;
import org.bukkit.inventory.ShapedRecipe;
import org.bukkit.inventory.meta.ItemMeta;
 
import com.gmail.Birdytrap.Pipeweed.PipeweedPlugin;
public class PipeweedListener implements Listener {
    private PipeweedPlugin plugin;
 
    public PipeweedListener(PipeweedPlugin plugin) {
        this.plugin = plugin;
    }
 
    @EventHandler
    public void onCraft(PrepareItemCraftEvent event) {
        CraftingInventory inv = event.getInventory();
        Recipe recipe = event.getRecipe();
     
        if (recipe instanceof ShapedRecipe) {
            ShapedRecipe sRecipe = (ShapedRecipe)recipe;
            if (recipeMatches(sRecipe, plugin.recipePipe)) {
                ItemStack result = new ItemStack(Material.STICK);
                ItemMeta meta = result.getItemMeta();
                meta.setDisplayName(ChatColor.DARK_GREEN + "Pipe");
                //Lore in the plugin file. This is for the public boolean.
                meta.setLore(Arrays.asList(PipeweedPlugin.PipeLore));
                //Enchantments. Durability for the glowing effect to show that this is the pipe.
                meta.addEnchant(Enchantment.DURABILITY, 1, false);
                result.setItemMeta(meta);
             
                inv.setResult(result);
            }
        }
        if (recipe instanceof ShapedRecipe) {
            ShapedRecipe sRecipe = (ShapedRecipe)recipe;
            if (recipeMatches(sRecipe, plugin.recipePipeweed)) {
                ItemStack result = new ItemStack(Material.WHEAT);
                ItemMeta meta = result.getItemMeta();
                meta.setDisplayName(ChatColor.GREEN + "Longbottom Leaf");
                meta.setLore(Arrays.asList(ChatColor.GOLD + "A common type of pipeweed"));
                meta.addEnchant(Enchantment.DURABILITY, 1, false);
                result.setItemMeta(meta);
             
                inv.setResult(result);
            }
        }
}
    private boolean recipeMatches(ShapedRecipe recipe1, ShapedRecipe recipe2) {
        if (!recipe1.getResult().equals(recipe2.getResult())) return false;
        if (recipe1.getShape().length != recipe2.getShape().length) return false;
        for (int i=0; i<recipe1.getShape().length; i++) {
            if (recipe1.getShape()[i].length() != recipe2.getShape()[i].length()) return false;
        }
        return true;
    }
    @EventHandler
    public void onPlayerInteract(PlayerInteractEvent event) {
        Player player = event.getPlayer();
            if(event.getAction() == Action.RIGHT_CLICK_AIR || event.getAction() == Action.RIGHT_CLICK_BLOCK){
                if (plugin.playerHasPipeInHand(player)) {
                 
                    player.getWorld().playEffect(player.getLocation(), Effect.SMOKE, 200);
                 
                    return;
                }
            }
        }
}
 
 

I hope someone can help me, since I have put alot of time in this!

Thanks in advance!

 

Why are u using an abstract class?!?!?! Also, show me ur plugin.yml

 

Because without the abstract, I get a error :/

Code:

The type PipeweedPlugin must implement the inherited abstract method Runnable.run()

Also my .yml is:

name: Pipeweed
version: 0.1
main: com.gmail.Birdytrap.Pipeweed.PipeweedPlugin
author: Birdytrap
description: Test

 

lol. Remove 'abstract' and add run() method. If you want to schedule task then you must give it something to run.

 

Why are u implementing runnable?!?!

 

Do not add abstract to your plugins class definition. Add implementations for the missing methods eclipse is complaining about instead. Empty methods will be sufficient if you don't need them. Using eclipses quick fix for it will generate the missing methods automatically.

 

Oh, ok! Well thank you both! I fixed this error! I can finaly continue with my plugin!

Thanks again!

PS: Both of you get a cake --->

 

Yes! Nomnom... That cake tastes baad...