Unable to load plugin. abnormal plugin type

Hey i cant find an answer to this on any previous posts. Does anyone know what is causing this error?

Error:

Code:

[20:54:19 ERROR]: Could not load 'plugins/Gamble.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: Abnormal plugin type
    at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:56) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-21-g1ab090e-b3050jnks]
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:127) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-21-g1ab090e-b3050jnks]
    at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:328) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-21-g1ab090e-b3050jnks]
    at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:251) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-21-g1ab090e-b3050jnks]
    at org.bukkit.craftbukkit.v1_7_R3.CraftServer.loadPlugins(CraftServer.java:350) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-21-g1ab090e-b3050jnks]
    at org.bukkit.craftbukkit.v1_7_R3.CraftServer.reload(CraftServer.java:784) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-21-g1ab090e-b3050jnks]
    at org.bukkit.Bukkit.reload(Bukkit.java:288) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-21-g1ab090e-b3050jnks]
    at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:23) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-21-g1ab090e-b3050jnks]
    at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:180) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-21-g1ab090e-b3050jnks]
    at org.bukkit.craftbukkit.v1_7_R3.CraftServer.dispatchCommand(CraftServer.java:696) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-21-g1ab090e-b3050jnks]
    at net.minecraft.server.v1_7_R3.PlayerConnection.handleCommand(PlayerConnection.java:953) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-21-g1ab090e-b3050jnks]
    at net.minecraft.server.v1_7_R3.PlayerConnection.a(PlayerConnection.java:815) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-21-g1ab090e-b3050jnks]
    at net.minecraft.server.v1_7_R3.PacketPlayInChat.a(PacketPlayInChat.java:28) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-21-g1ab090e-b3050jnks]
    at net.minecraft.server.v1_7_R3.PacketPlayInChat.handle(PacketPlayInChat.java:47) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-21-g1ab090e-b3050jnks]
    at net.minecraft.server.v1_7_R3.NetworkManager.a(NetworkManager.java:148) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-21-g1ab090e-b3050jnks]
    at net.minecraft.server.v1_7_R3.ServerConnection.c(SourceFile:134) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-21-g1ab090e-b3050jnks]
    at net.minecraft.server.v1_7_R3.MinecraftServer.v(MinecraftServer.java:667) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-21-g1ab090e-b3050jnks]
    at net.minecraft.server.v1_7_R3.DedicatedServer.v(DedicatedServer.java:260) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-21-g1ab090e-b3050jnks]
    at net.minecraft.server.v1_7_R3.MinecraftServer.u(MinecraftServer.java:558) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-21-g1ab090e-b3050jnks]
    at net.minecraft.server.v1_7_R3.MinecraftServer.run(MinecraftServer.java:469) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-21-g1ab090e-b3050jnks]
    at net.minecraft.server.v1_7_R3.ThreadServerApplication.run(SourceFile:628) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-21-g1ab090e-b3050jnks]
Caused by: java.lang.InstantiationException: me.storm2.drink.main
    at java.lang.Class.newInstance0(Class.java:342) ~[?:1.6.0_65]
    at java.lang.Class.newInstance(Class.java:310) ~[?:1.6.0_65]
    at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:52) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-21-g1ab090e-b3050jnks]
    ... 20 more

Main:

Code:

package me.storm2.drink;
 
import org.bukkit.ChatColor;
import org.bukkit.Material;
import org.bukkit.entity.Player;
import org.bukkit.plugin.java.JavaPlugin;
 
public class main extends JavaPlugin implements Runnable{
   
    private Player p;
    private int slot;
   
    public main(Player p,int slot) {
        this.p = p;
        this.slot = slot;
       
 
        }
   
   
    @Override
    public void onEnable() {
        this.getServer().getConsoleSender().sendMessage(ChatColor.GREEN + "$Let the cash flow because gamble is now online!$");
    }
    @Override
    public void onDisable() {
        this.getServer().getConsoleSender().sendMessage(ChatColor.RED + "Oh no! The cash flow has stopped! Gamble is now offline D:");
    }
 
    @Override
    public void run() {
        if (p.getInventory().getHeldItemSlot() == slot && p.getItemInHand().getType().equals(Material.GLASS_BOTTLE)) {
            p.sendMessage("Sup bro");
    }
}
 
}

 

Get rid of the constructor for your main class.

 

1. Why would your plugin implement Runnable...?
2. Why does your main class have a constructor.
3. Why does your constructor require a Player and a slot... what are you trying to do?

 

SnipsRevival Thanks

@kingfaris I was reading another post on here and following what he was saying im guessing by your questions i probably shouldnt be learning from him