Solved Pasting Schematics with WorldEdit

I don't understand why worldEdit is returning null.
Error:

Code:

15:48:02 [SEVERE] Could not load 'plugins\SchematicShenanigans.jar' in folder 'p
lugins'
org.bukkit.plugin.InvalidPluginException: java.lang.NullPointerException
        at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.j
ava:182)
        at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.
java:305)
        at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager
.java:230)
        at org.bukkit.craftbukkit.v1_6_R3.CraftServer.loadPlugins(CraftServer.ja
va:239)
        at org.bukkit.craftbukkit.v1_6_R3.CraftServer.reload(CraftServer.java:60
7)
        at org.bukkit.Bukkit.reload(Bukkit.java:277)
        at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:
23)
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:19
2)
        at org.bukkit.craftbukkit.v1_6_R3.CraftServer.dispatchCommand(CraftServe
r.java:523)
        at net.minecraft.server.v1_6_R3.PlayerConnection.handleCommand(PlayerCon
nection.java:959)
        at net.minecraft.server.v1_6_R3.PlayerConnection.chat(PlayerConnection.j
ava:877)
        at net.minecraft.server.v1_6_R3.PlayerConnection.a(PlayerConnection.java
:834)
        at net.minecraft.server.v1_6_R3.Packet3Chat.handle(SourceFile:49)
        at net.minecraft.server.v1_6_R3.NetworkManager.b(NetworkManager.java:296
)
        at net.minecraft.server.v1_6_R3.PlayerConnection.e(PlayerConnection.java
:116)
        at net.minecraft.server.v1_6_R3.ServerConnection.b(SourceFile:37)
        at net.minecraft.server.v1_6_R3.DedicatedServerConnection.b(SourceFile:3
0)
        at net.minecraft.server.v1_6_R3.MinecraftServer.t(MinecraftServer.java:5
92)
        at net.minecraft.server.v1_6_R3.DedicatedServer.t(DedicatedServer.java:2
27)
        at net.minecraft.server.v1_6_R3.MinecraftServer.s(MinecraftServer.java:4
88)
        at net.minecraft.server.v1_6_R3.MinecraftServer.run(MinecraftServer.java
:421)
        at net.minecraft.server.v1_6_R3.ThreadServerApplication.run(SourceFile:5
83)
Caused by: java.lang.NullPointerException
        at me.Doamax.SchematicShenanigans.TerrainManager.<init>(TerrainManager.j
ava:40)
        at me.Doamax.SchematicShenanigans.TimeManager.<init>(TimeManager.java:26
)
        at me.Doamax.SchematicShenanigans.Main.<init>(Main.java:22)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
 
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
 
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Sou
rce)
        at java.lang.reflect.Constructor.newInstance(Unknown Source)
        at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.j
ava:178)
        ... 21 more

TerrainManager.class: Lines 39-44

Code:java

        public TerrainManager(WorldEditPlugin wep, World world) {
                we = wep.getWorldEdit();
                localPlayer = null;
                localSession = new LocalSession(we.getConfiguration());
                editSession = new EditSession(new BukkitWorld(world), we.getConfiguration().maxChangeLimit);
        }

TimeManager.class: Lines 17-27

Code:java

 
public class TimeManager {
    public Main main;
    FileConfiguration config;
    WorldEditPlugin worldEdit;
    public TimeManager(Main main, WorldEditPlugin worldEdit) {
        this.main = main;
        this.config = main.getConfig();
        this.worldEdit = worldEdit;
    }
    public TerrainManager tem = new TerrainManager(worldEdit, Bukkit.getWorld("world"));
    public boolean dayNight;

Main.class: Lines 17-24

Code:java

public class Main extends JavaPlugin {
    public final Logger logger = Logger.getLogger("Minecraft");
    public static Main main;
    public final SSListener l = new SSListener(this);
    WorldEditPlugin worldEdit = (WorldEditPlugin) Bukkit.getServer().getPluginManager().getPlugin("WorldEdit");
    public final TimeManager tm = new TimeManager(this, worldEdit);
    FileConfiguration config;
    PluginManager pm;

 

Your problem lies in the following code

Code:java

public TimeManager(Main main, WorldEditPlugin worldEdit) {
  this.main = main;
  this.config = main.getConfig();
  this.worldEdit = worldEdit;
}
public TerrainManager tem = new TerrainManager(worldEdit, Bukkit.getWorld("world"));
 

Variables are loaded before the class constructor gets executed.
This means that it tries to initialize the TerrainManager before the worldEdit variable gets set.
To fix this, you'd have to move the variable initialization in the constructor as well, like this

Code:java

public TimeManager(Main main, WorldEditPlugin worldEdit) {
  this.main = main;
  this.config = main.getConfig();
  this.worldEdit = worldEdit;
  this.tem = new TerrainManager(worldEdit, Bukkit.getWorld("world"));
}
public TerrainManager tem;