Adding location of sign to the config

Hi, I have problems with adding location of the sign to the config. Code:

Code:

    @EventHandler
    public void onSignChange(final SignChangeEvent e) {
        Player p = e.getPlayer();
        if (!p.hasPermission("castlewars.admin")) {
            return;
        }
        final FileConfiguration config = this.getConfig();
        Block sign = e.getBlock();
        locations.add(sign.getLocation());
        config.set("signs", locations);
        config.options().copyDefaults(true);
        this.saveConfig();
    }

Error:

Code:

[02:57:49] [Server thread/ERROR]: Could not pass event SignChangeEvent to CastleWars v1.0
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[x.jar:git-PaperSpigot-1f7d532]
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[x.jar:git-PaperSpigot-1f7d532]
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:509) [x.jar:git-PaperSpigot-1f7d532]
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:494) [x.jar:git-PaperSpigot-1f7d532]
    at net.minecraft.server.v1_7_R4.PlayerConnection.a(PlayerConnection.java:1732) [x.jar:git-PaperSpigot-1f7d532]
    at net.minecraft.server.v1_7_R4.PacketPlayInUpdateSign.a(PacketPlayInUpdateSign.java:58) [x.jar:git-PaperSpigot-1f7d532]
    at net.minecraft.server.v1_7_R4.PacketPlayInUpdateSign.handle(PacketPlayInUpdateSign.java:78) [x.jar:git-PaperSpigot-1f7d532]
    at net.minecraft.server.v1_7_R4.NetworkManager.a(NetworkManager.java:189) [x.jar:git-PaperSpigot-1f7d532]
    at net.minecraft.server.v1_7_R4.ServerConnection.c(ServerConnection.java:81) [x.jar:git-PaperSpigot-1f7d532]
    at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:795) [x.jar:git-PaperSpigot-1f7d532]
    at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:307) [x.jar:git-PaperSpigot-1f7d532]
    at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:643) [x.jar:git-PaperSpigot-1f7d532]
    at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:549) [x.jar:git-PaperSpigot-1f7d532]
    at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628) [x.jar:git-PaperSpigot-1f7d532]
Caused by: java.lang.NullPointerException
    at x.x.castlewars.Main.onSignChange(Main.java:292) ~[?:?]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_60]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_60]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_60]
    at java.lang.reflect.Method.invoke(Method.java:497) ~[?:1.8.0_60]
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:298) ~[x.jar:git-PaperSpigot-1f7d532]
    ... 13 more

Line numer 292 is: "locations.add(sign.getLocation());"
I use: public List<Location> locations = new ArrayList<Location>();

 

Either sign is null or locations is

 

@mouz_ http://bukkit.org/threads/how-to-re...ubleshoot-your-own-plugins-by-yourself.32457/

 

@Mrs. bwfctower
Keeping in mind that this is the third time he's posted the same thing

 

This thread is locked.

@mouz_ after going through the last two threads you posted about signs, you have almost no knowledge of how java works. These forums are not for beginner java students. Please consult some basic tutorials and acquire the fundamentals of java programming knowledge before trying to program a bukkit plugin.