Error?

I never made a plugin before and i'm trying to make a test plugin but i get a error when i start the server.

Code:
Basic.java

Code:

package America.xXm0difierXx.Basic;
 
import java.util.logging.Logger;
import org.bukkit.plugin.java.JavaPlugin;
 
/**
* Basic for Bukkit
*
* @author xXm0dzxx
*
*/
 
public class Basic extends JavaPlugin {
 
    Logger log = this.getLogger();
   
    public void onEnable() {
        log.info("test");
    }
   
    public void onDisable() {
        log.info("test failed");
    }
}

plugin.yml

Code:

name: Basic
main: America.xXm0difierXx.Basic
version: 1.0.1

Error:

Code:

2012-03-08 18:03:26 [SEVERE] Could not load 'plugins\Basic.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.ClassNotFoundException: America.xXm0difierXx.Basic
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:150)
    at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:287)
    at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:211)
    at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftServer.java:206)
    at org.bukkit.craftbukkit.CraftServer.<init>(CraftServer.java:182)
    at net.minecraft.server.ServerConfigurationManager.<init>(ServerConfigurationManager.java:53)
    at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:147)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:407)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:465)
Caused by: java.lang.ClassNotFoundException: America.xXm0difierXx.Basic
    at java.net.URLClassLoader$1.run(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:41)
    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:29)
    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:139)
    ... 8 more

 

This just looks like you haven't included Basic in the jar. Add it in, and it should work just fine.

 

Its in there

 

ClassNotFoundException means it well... Can't find the class. Is your jar in a structure like yourjar.jar/America/xXm0difierXx/Basic.class?

 

Yea

Heres what the file looks like:

Code:

Basic.jar
  META-INF
    MANIFEST.MF
 
  America
    xXm0difierXx
      Basic
        Basic.class
 
  plugin.yml

 

Plugin.yml - try this

PHP:

name: Basic
main: America.xXm0difierXx.Basic.Basic
version: 1.0.1

 

Code:

2012-03-08 20:03:12 [SEVERE] Could not load 'plugins\Basic.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.NullPointerException
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:148)
    at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:287)
    at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:211)
    at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftServer.java:206)
    at org.bukkit.craftbukkit.CraftServer.<init>(CraftServer.java:182)
    at net.minecraft.server.ServerConfigurationManager.<init>(ServerConfigurationManager.java:53)
    at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:147)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:407)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:465)
Caused by: java.lang.NullPointerException
    at org.bukkit.plugin.PluginLogger.<init>(PluginLogger.java:22)
    at org.bukkit.plugin.java.JavaPlugin.getLogger(JavaPlugin.java:359)
    at America.xXm0difierXx.Basic.Basic.<init>(Basic.java:15)
    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:144)
    ... 8 more

 

Change at Basic.java
Logger log = this.getLogger();

to

Logger log = Logger.getLogger("Minecraft");

 

Thanks it works!

 

=d

 

OR do this:

Code:

Logger log;
 
public void onEnable(){
    log = this.getLogger();
}