2012-05-01 07:33:31 [SEVERE] Error occurred while enabling Gravity v1.1.1 (Is it up to date?)

I'm getting this error when i start my server

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2012-05-01 07:33:31 [SEVERE] Error occurred while enabling Gravity v1.1.1 (Is it up to date?)
java.lang.NullPointerException
at com.oneofthesevenbillion.ziah.Gravity.Gravity.onEnable(Gravity.java:37)
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:215)
at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:336)
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:381)
at org.bukkit.craftbukkit.CraftServer.loadPlugin(CraftServer.java:250)
at org.bukkit.craftbukkit.CraftServer.enablePlugins(CraftServer.java:232)
at net.minecraft.server.MinecraftServer.t(MinecraftServer.java:371)
at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:358)
at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:187)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:422)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)

Here's the source code http://pastebin.com/6WTUBY31

Here's the plugin.yml

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name: Gravity
main: com.oneofthesevenbillion.ziah.Gravity.Gravity
version: 1.1.1
description: Makes it so blocks will fall unless they are supported by something touching the ground
author: ziah5
depend: [WorldEdit]
permissions:
gravity.disable:
description: Allows you to use the disable gravity command
default: op
gravity.enable:
description: Allows you to use the enable gravity command
default: op
gravity.*:
description: Gives you all gravity permissions
default: op
commands:
gravity:
description: Main gravity command
aliases: g
usage: Type /<command> help for help

 

In line 37 you assign a variable something that comes from server.getPluginManager()...
That "server" is defined in line 32 and is also assigned there. That is a no-go.

When using Bukkit, the first Bukkit-related assignments (like in line 32, getServer()) can
be made within the onEnable() method for the first time.
So assign the "server" variable there and you should be good.

( Like this: )

Code:

        Logger log;
        Server server;
        File pFolder = new File("plugins" + File.separator + "Gravity");
        SQLite sqlite;
        Plugin WorldEdit;
        public void onEnable() {
                server = getServer();
                PluginManager pluginManager = server.getPluginManager();
                // ...
        }

ALSO, how do you plan on applying sand-like behavior to other blocks??

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

 

Thanks I'll try that.

 

You don't need to store the server instance somewhere, you can just use Bukkit.getServer() anywhere.

 

True.