Handicap Newb Bug

So ya, I can't even get it to load. I don't know what I'm doing wrong -.-

Code:

[SEVERE] Could not load 'plugins\Splosion.jar' in folder 'plugins':
java.lang.NoClassDefFoundError: Skycraft/Splosion/bin/com/kuzi117/splosion/Splosion (wrong name: com/kuzi117/splosion/Splosion)
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClassCond(Unknown Source)
    at java.lang.ClassLoader.defineClass(Unknown Source)
    at java.security.SecureClassLoader.defineClass(Unknown Source)
    at java.net.URLClassLoader.defineClass(Unknown Source)
    at java.net.URLClassLoader.access$000(Unknown Source)
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:36)
    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:24)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:167)
    at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:194)
    at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:117)
    at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftServer.java:101)
    at net.minecraft.server.MinecraftServer.e(MinecraftServer.java:218)
    at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:205)
    at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:145)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:265)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:394)

 

Well, it says in the 2nd line "Wrong name :... " Try making sure the name is right, it looks as if your class is not being found. Make sure your plugin.yml is right, it should be like so:

Code:

name: Splosion
main: com.kuzi117.splosion.Splosion
version: 1.0
##Commands: (if you are using them)

Also make sure your class is called Splosion, the file name and the class line inside.

 

I fixed that error, but now there's this new one. Ask me for other info if you need more stuff from me.

Code:

[SEVERE] Could not load 'plugins\Splosion.jar' in folder 'plugins':
java.lang.ClassNotFoundException: com.kuzi117.splosion.Splosion
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:36)
    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:24)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:167)
    at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:194)
    at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:117)
    at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftServer.java:101)
    at net.minecraft.server.MinecraftServer.e(MinecraftServer.java:218)
    at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:205)
    at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:145)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:265)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:394)

 

Could I see your plugin.yml file and your main class (Splosion.java)?

 

I pm'd you.

Fixed, thanks Jako

New bug, and I feel like this one's even dumber than the last.

When executed from player

Code:

[SEVERE] null
org.bukkit.command.CommandException: Unhandled exception executing command 'splode' in plugin Splosion v0.1
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:37)
    at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:128)
    at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:287)
    at net.minecraft.server.NetServerHandler.handleCommand(NetServerHandler.java:712)
    at net.minecraft.server.NetServerHandler.chat(NetServerHandler.java:678)
    at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:671)
    at net.minecraft.server.Packet3Chat.a(Packet3Chat.java:32)
    at net.minecraft.server.NetworkManager.b(NetworkManager.java:226)
    at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:75)
    at net.minecraft.server.NetworkListenThread.a(SourceFile:105)
    at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:399)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:309)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:422)
Caused by: java.lang.ArrayIndexOutOfBoundsException: 0
    at com.kuzi117.splosion.Splosion.onCommand(Splosion.java:35)
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:35)
    ... 12 more

When executed from console

Code:

[WARNING] Unexpected exception while parsing console command
org.bukkit.command.CommandException: Unhandled exception executing command 'splode' in plugin Splosion v0.1
 at org.bukkit.command.PluginCommand.execute(PluginCommand.java:37)
 at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:128)
 at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:279)
 at net.minecraft.server.MinecraftServer.b(MinecraftServer.java:428)
 at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:413)
 at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:309)
 at net.minecraft.server.ThreadServerApplication.run(SourceFile:422)
Caused by: java.lang.ArrayIndexOutOfBoundsException: 0
 at com.kuzi117.splosion.Splosion.onCommand(Splosion.java:35)
 at org.bukkit.command.PluginCommand.execute(PluginCommand.java:35)
 ... 6 more

Any ideas?

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

 

It seems you want to excecute a command, in which you are using args[0]'s. but since these args are null, it gives an error.

 

I totally am. And I did not know that.
Thank you.

EDIT:
Still broken with these errors:

From console:

Code:

[WARNING] Unexpected exception while parsing console command
org.bukkit.command.CommandException: Unhandled exception executing command 'splode' in plugin Splosion v0.1
 at org.bukkit.command.PluginCommand.execute(PluginCommand.java:37)
 at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:128)
 at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:279)
 at net.minecraft.server.MinecraftServer.b(MinecraftServer.java:428)
 at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:413)
 at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:309)
 at net.minecraft.server.ThreadServerApplication.run(SourceFile:422)
Caused by: java.lang.ArrayIndexOutOfBoundsException: 1
 at com.kuzi117.splosion.Splosion.onCommand(Splosion.java:35)
 at org.bukkit.command.PluginCommand.execute(PluginCommand.java:35)
 ... 6 more

From player:

Code:

[SEVERE] null
org.bukkit.command.CommandException: Unhandled exception executing command 'splode' in plugin Splosion v0.1
 at org.bukkit.command.PluginCommand.execute(PluginCommand.java:37)
 at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:128)
 at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:287)
 at net.minecraft.server.NetServerHandler.handleCommand(NetServerHandler.java:712)
 at net.minecraft.server.NetServerHandler.chat(NetServerHandler.java:678)
 at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:671)
 at net.minecraft.server.Packet3Chat.a(Packet3Chat.java:32)
 at net.minecraft.server.NetworkManager.b(NetworkManager.java:226)
 at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:75)
 at net.minecraft.server.NetworkListenThread.a(SourceFile:105)
 at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:399)
 at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:309)
 at net.minecraft.server.ThreadServerApplication.run(SourceFile:422)
Caused by: java.lang.ArrayIndexOutOfBoundsException: 1
 at com.kuzi117.splosion.Splosion.onCommand(Splosion.java:35)
 at org.bukkit.command.PluginCommand.execute(PluginCommand.java:35)
 ... 12 more

 

Same problem, although you now are using args[1] instead of args[0]

 

You should really check if the args are there before trying to read them.

In layman's terms, you are asking your plugin to read a note and tell you what is says, and your plugin is getting quite confused because there is no note.

 

Yes, to prevent this, you are going to want to check your args.length.

Code:

public void onCommand(blah)
{
    if (args.length() == 0)
    {
        //sender.sendMessage will send a message to the player if that is the sender or the console.
        sender.sendMessage(ChatColor.RED + "To correctly dance, type /dance now, or /dance at noon");
    }
    if (args.length() == 1)
    {
        //Do something taking 1 argument ("/dance now")
    }
    if (args.length() == 2)
    {
        //Do something taking 2 arguments ("/dance at noon")
    }
}

Hope that helps,
-Jako

 

Could I do:

Code:

if(args.length >= 1) {
    List<Player> matchedPlayers = server.matchPlayer(args[1]);
    if(matchedPlayers.get(0).toString().length() > 0) {

        //Do stuff

        }
    else {
        sender.sendMessage("A player with a name containing" + args[1] + "could not be found.");

        }
    }
}
else {
    sender.sendMessage("Learn to use it right.");
    return true;
}

EDIT:
The onCommand puts the first argument like, "/command [argument]", in args[1]? Is that what I'm supposed to get out of this?

 

First argument is args[0], second is args[1], third is..

 

That's what I thought, I misunderstood @Lolmewn and thought that args[0] was always assinged null. That's why I was surprised.
Anyways, I get it to work fine now for executing with an argument after I basically rewrote the whole thing since I had written it so messly, but now despite having this code:

Code:

if (args == null) {
    sender.sendMessage("Welcome to splode");
    sender.sendMessage("Usage is /splode [playername]");
    return true;
}

I generate this error:

Code:

[SEVERE] null
org.bukkit.command.CommandException: Unhandled exception executing command 'splode' in plugin Splosion v0.2
 at org.bukkit.command.PluginCommand.execute(PluginCommand.java:37)
 at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:128)
 at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:287)
 at net.minecraft.server.NetServerHandler.handleCommand(NetServerHandler.java:712)
 at net.minecraft.server.NetServerHandler.chat(NetServerHandler.java:678)
 at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:671)
 at net.minecraft.server.Packet3Chat.a(Packet3Chat.java:32)
 at net.minecraft.server.NetworkManager.b(NetworkManager.java:226)
 at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:75)
 at net.minecraft.server.NetworkListenThread.a(SourceFile:105)
 at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:399)
 at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:309)
 at net.minecraft.server.ThreadServerApplication.run(SourceFile:422)
Caused by: java.lang.ArrayIndexOutOfBoundsException: 0
 at com.kuzi117.splosion.Splosion.onCommand(Splosion.java:39)
 at org.bukkit.command.PluginCommand.execute(PluginCommand.java:35)
 ... 12 more

 

Code:java

if(args.length == 0)
{
    sender.sendMessage("....");
    //....
    return false;
}

 

How do I check if a command is being sent from the console?

 

Code:java

if(sender instanceof ConsoleCommandSender)
{
    //from console
}
else
{
    //from player or other CommandSender, could be from other plugin
}

or

Code:java

if(!(sender instanceof Player))
{
    //not from Player
}
else
{
    //from Player
}