My code Main class new FirstJoin(this); Code (Text): package me.KingLinux01; import org.bukkit.entity.Player; import org.bukkit.event.EventHandler; import org.bukkit.event.Listener; import org.bukkit.event.player.PlayerJoinEvent; public class FirstJoin implements Listener { private ServerInfo plugin; public FirstJoin(ServerInfo pl) { plugin = pl; } public void FirstJoin(ServerInfo plugin) { plugin.getServer().getPluginManager().registerEvents(this, plugin); } @EventHandler public void FirstJoin(PlayerJoinEvent e){ Player player = e.getPlayer(); if(player.hasPlayedBefore() == false){ player.sendMessage("Do /serverinfo to get some info about the server."); } } }
You need to be more descriptive. You give like no information. But from guessing, i am assuming you want to access the configuration in the command, which you can do by using plugin.getConfiguration(). But what i'm wondering is why you have a constructor and a method with the same name, and the method takes the plugin again... Its just not necessary. You can remove the method and just register your events in the constructor of the class. Like this: Code (Text): public FirstJoin(ServerInfo pl) { plugin = pl; } public void FirstJoin(ServerInfo plugin) { plugin.getServer().getPluginManager().registerEvents(this, plugin); } to this: Code (Text): public FirstJoin(ServerInfo pl) { plugin = pl; Bukkit.getServer().getPluginManager().registerEvents(this, plugin); }
public void FirstJoin(ServerInfo plugin) is not a constructor. That is a method with the name "FirstJoin". Remember that constructors do not contain returnable modifiers (void, any return object, etc.). Take the body of the FirstJoin method, and move it to your FirstJoin constructor EDIT: -,- Sniped again.
Code (Text): Error occurred while enabling ServerInfo v1.2 (Is it up to date?) java.lang.NullPointerException at org.bukkit.plugin.SimplePluginManager.registerEvents(SimplePluginManager.java:523) ~[SpigotAPI.jar:git-Spigot-8a048fe-042911f] at me.KingLinux01.FirstJoin.<init>(FirstJoin.java:14) ~[?:?] at me.KingLinux01.ServerInfo.onEnable(ServerInfo.java:44) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:292) ~[SpigotAPI.jar:git-Spigot-8a048fe-042911f] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:340) [SpigotAPI.jar:git-Spigot-8a048fe-042911f] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:405) [SpigotAPI.jar:git-Spigot-8a048fe-042911f] at org.bukkit.craftbukkit.v1_9_R2.CraftServer.loadPlugin(CraftServer.java:362) [SpigotAPI.jar:git-Spigot-8a048fe-042911f] at org.bukkit.craftbukkit.v1_9_R2.CraftServer.enablePlugins(CraftServer.java:322) [SpigotAPI.jar:git-Spigot-8a048fe-042911f] at org.bukkit.craftbukkit.v1_9_R2.CraftServer.reload(CraftServer.java:746) [SpigotAPI.jar:git-Spigot-8a048fe-042911f] at org.bukkit.Bukkit.reload(Bukkit.java:539) [SpigotAPI.jar:git-Spigot-8a048fe-042911f] at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:25) [SpigotAPI.jar:git-Spigot-8a048fe-042911f] at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) [SpigotAPI.jar:git-Spigot-8a048fe-042911f] at org.bukkit.craftbukkit.v1_9_R2.CraftServer.dispatchCommand(CraftServer.java:646) [SpigotAPI.jar:git-Spigot-8a048fe-042911f] at net.minecraft.server.v1_9_R2.PlayerConnection.handleCommand(PlayerConnection.java:1349) [SpigotAPI.jar:git-Spigot-8a048fe-042911f] at net.minecraft.server.v1_9_R2.PlayerConnection.a(PlayerConnection.java:1184) [SpigotAPI.jar:git-Spigot-8a048fe-042911f] at net.minecraft.server.v1_9_R2.PacketPlayInChat.a(PacketPlayInChat.java:45) [SpigotAPI.jar:git-Spigot-8a048fe-042911f] at net.minecraft.server.v1_9_R2.PacketPlayInChat.a(PacketPlayInChat.java:1) [SpigotAPI.jar:git-Spigot-8a048fe-042911f] at net.minecraft.server.v1_9_R2.PlayerConnectionUtils$1.run(SourceFile:13) [SpigotAPI.jar:git-Spigot-8a048fe-042911f] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_91] at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_91] at net.minecraft.server.v1_9_R2.SystemUtils.a(SourceFile:45) [SpigotAPI.jar:git-Spigot-8a048fe-042911f] at net.minecraft.server.v1_9_R2.MinecraftServer.D(MinecraftServer.java:726) [SpigotAPI.jar:git-Spigot-8a048fe-042911f] at net.minecraft.server.v1_9_R2.DedicatedServer.D(DedicatedServer.java:399) [SpigotAPI.jar:git-Spigot-8a048fe-042911f] at net.minecraft.server.v1_9_R2.MinecraftServer.C(MinecraftServer.java:665) [SpigotAPI.jar:git-Spigot-8a048fe-042911f] at net.minecraft.server.v1_9_R2.MinecraftServer.run(MinecraftServer.java:564) [SpigotAPI.jar:git-Spigot-8a048fe-042911f] at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
You are passing in null to the constructor, you need to pass in an instance of your plugin, or 'this' if you are creating FirstJoin from your plugins class.
Code (Text): public FirstJoin(ServerInfo pl) { Bukkit.getServer().getPluginManager().registerEvents(this, plugin); plugin = pl; }
Put "plugin = pl" one line higher. "plugin" is null if you're only initializing it after you register the event. This is basic Java syntax. Sequence
