My plugin is loading twice?

Could someone tell me why? there is only one onEnable code feature added in all the classes (which is Main.java)

Code:

[17:06:19 INFO]: [VortexCommands] Loading VortexCommands v1.0.0
[17:06:19 WARN]: **** SERVER IS RUNNING IN OFFLINE/INSECURE MODE!
[17:06:19 WARN]: The server will make no attempt to authenticate usernames. Bewa
re.
[17:06:19 WARN]: While this makes the game possible to play without internet acc
ess, it also opens up the ability for hackers to connect with any username they
choose.
[17:06:19 WARN]: To change this, set "online-mode" to "true" in the server.prope
rties file.
[17:06:19 INFO]: Preparing level "world"
[17:06:19 INFO]: Preparing start region for level 0 (Seed: -2281960432162553856)
 
[17:06:19 INFO]: [VortexCommands] Enabling VortexCommands v1.0.0
[17:06:19 ERROR]: Error occurred while enabling VortexCommands v1.0.0 (Is it up
to date?)
java.lang.IllegalArgumentException: Plugin already initialized!
        at org.bukkit.plugin.java.PluginClassLoader.initialize(PluginClassLoader
.java:98) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
        at org.bukkit.plugin.java.JavaPlugin.<init>(JavaPlugin.java:66) ~[craftb
ukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
        at me.iamcion.firework.FireworkCommand.<init>(FireworkCommand.java:12) ~
[?:?]
        at me.iamcion.firework.Main.registerCommands(Main.java:24) ~[?:?]
        at me.iamcion.firework.Main.onEnable(Main.java:14) ~[?:?]
        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:316) ~[c
raftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
        at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader
.java:324) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
        at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManage
r.java:404) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
        at org.bukkit.craftbukkit.v1_7_R3.CraftServer.loadPlugin(CraftServer.jav
a:446) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
        at org.bukkit.craftbukkit.v1_7_R3.CraftServer.enablePlugins(CraftServer.
java:380) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
        at net.minecraft.server.v1_7_R3.MinecraftServer.n(MinecraftServer.java:3
52) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
        at net.minecraft.server.v1_7_R3.MinecraftServer.g(MinecraftServer.java:3
26) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
        at net.minecraft.server.v1_7_R3.MinecraftServer.a(MinecraftServer.java:2
82) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
        at net.minecraft.server.v1_7_R3.DedicatedServer.init(DedicatedServer.jav
a:182) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
        at net.minecraft.server.v1_7_R3.MinecraftServer.run(MinecraftServer.java
:436) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
        at net.minecraft.server.v1_7_R3.ThreadServerApplication.run(SourceFile:6
28) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
Caused by: java.lang.IllegalStateException: Initial initialization
        at org.bukkit.plugin.java.PluginClassLoader.initialize(PluginClassLoader
.java:101) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
        at org.bukkit.plugin.java.JavaPlugin.<init>(JavaPlugin.java:66) ~[craftb
ukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
        at me.iamcion.firework.Main.<init>(Main.java:9) ~[?:?]
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
~[?:1.7.0_51]
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
~[?:1.7.0_51]
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Sou
rce) ~[?:1.7.0_51]
        at java.lang.reflect.Constructor.newInstance(Unknown Source) ~[?:1.7.0_5
1]
        at java.lang.Class.newInstance(Unknown Source) ~[?:1.7.0_51]
        at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.jav
a:52) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
        at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.j
ava:127) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
        at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.
java:328) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
        at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager
.java:251) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
        at org.bukkit.craftbukkit.v1_7_R3.CraftServer.loadPlugins(CraftServer.ja
va:355) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
        at org.bukkit.craftbukkit.v1_7_R3.CraftServer.<init>(CraftServer.java:31
7) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
        at net.minecraft.server.v1_7_R3.PlayerList.<init>(PlayerList.java:68) ~[
craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
        at net.minecraft.server.v1_7_R3.DedicatedPlayerList.<init>(SourceFile:14
) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
        at net.minecraft.server.v1_7_R3.DedicatedServer.init(DedicatedServer.jav
a:126) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
        ... 2 more

Nevermind. fixed.

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

 

Ok, so it looks like you have a "extends JavaPlugin" in more then just the main class, when you create a new instance of that class Bukkit goes "oh, looky here a JavaPlugin. Let's try and load that up..... Oops, looks like it's already initialised, time to throw a error.". If you only have one "extends JavaPlugin" (in the main class) then bukkit won't try and load the plugin twice and cause the above error.

 

Well, then tell me why there's a main: ... in the plugin.yml, if bukkit looks into the whole jar to find a class extends JavaPlugin?


@TO: please provide some code where the error occurs, seems like your calling sth like enablePlugin() or so.

 

Zupsub
It doesn't look through the whole jar file. If you create a class and extend the JavaPlugin then create a new instance of that class Bukkit says "Ooo, look a new JavaPlugin". This will only happen if you instance a class. You can probabally have a class that extends JavaPlugin without causing errors (If you don't instace it).

 

TGRHavoc Zupsub

 

AdamQpzm
Oh, didn't see that .
I guess iamcion should mark this thread as "Solved"...

 

TGRHavoc This is probably true, and don't blame you for missing it, especially since it was a new post and not an edit.

 

And locked. We do not support servers with authentication disabled.