The user is not on the Discord

[Angxstupst]

Hey, I have a little problem. When the code run, become I get this message even though I'm on the Discord.

It seems that you left our Discord server!

Here the code:

if(args[0].equalsIgnoreCase("update")) {
                    if(permissionManager.isPlayerInGroup(player, "VIP")) {
                        Member user = guild.getMemberById("462552032734216203");
                        Role vipRole = guild.getRolesByName("VIP", false).get(0);
                        if(user != null) {
                            guild.addRoleToMember(user, vipRole).queue();
                            player.sendMessage("§a Successfully");
                        }else{
                            player.sendMessage("§c It seems that you left our Discord server!");
                            return true;
                        }
                    }
                }

[MinnDevelopment]

The getMemberById only checks for members in the cache, you can use retrieveMemberById(id) to check with a discord api call instead.

Example:

guild.retrieveMemberById(462552032734216203L).queue(
  member -> {
    player.sendMessage("Success");
  }, new ErrorHandler().handle(ErrorResponse.UNKNOWN_MEMBER, error -> {
    player.sendMessage("It seems you left");
  }));

See also:

• retrieveMemberById
• RestAction
• ErrorHandler

[Angxstupst]

Now comes the following error

guild.addRoleToMember(target, verifiedRole).queue();

null
org.bukkit.command.CommandException: Unhandled exception executing command 'verify' in plugin DiscordTest v1.0.0
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[spigot.jar:git-Spigot-db6de12-18fbb24]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) ~[spigot.jar:git-Spigot-db6de12-18fbb24]
        at org.bukkit.craftbukkit.v1_8_R3.CraftServer.dispatchCommand(CraftServer.java:641) ~[spigot.jar:git-Spigot-db6de12-18fbb24]
        at net.minecraft.server.v1_8_R3.PlayerConnection.handleCommand(PlayerConnection.java:1162) [spigot.jar:git-Spigot-db6de12-18fbb24]
        at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:997) [spigot.jar:git-Spigot-db6de12-18fbb24]
        at net.minecraft.server.v1_8_R3.PacketPlayInChat.a(PacketPlayInChat.java:45) [spigot.jar:git-Spigot-db6de12-18fbb24]
        at net.minecraft.server.v1_8_R3.PacketPlayInChat.a(PacketPlayInChat.java:1) [spigot.jar:git-Spigot-db6de12-18fbb24]
        at net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(SourceFile:13) [spigot.jar:git-Spigot-db6de12-18fbb24]
        at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_291]
        at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_291]
        at net.minecraft.server.v1_8_R3.SystemUtils.a(SourceFile:44) [spigot.jar:git-Spigot-db6de12-18fbb24]
        at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:715) [spigot.jar:git-Spigot-db6de12-18fbb24]
        at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot.jar:git-Spigot-db6de12-18fbb24]
        at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot.jar:git-Spigot-db6de12-18fbb24]
        at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot.jar:git-Spigot-db6de12-18fbb24]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_291]
Caused by: java.lang.IllegalArgumentException: Member may not be null
        at net.dv8tion.jda.internal.utils.Checks.notNull(Checks.java:64) ~[?:?]
        at net.dv8tion.jda.internal.entities.GuildImpl.addRoleToMember(GuildImpl.java:1203) ~[?:?]
        at de.angxstupst.main.utils.DiscordManager.onCommand(DiscordManager.java:148) ~[?:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[spigot.jar:git-Spigot-db6de12-18fbb24]
        ... 15 more

[MinnDevelopment]

The member in the success callback (as seen in my code example) is never null. You must put all the code inside these callbacks not after.

[Angxstupst]

Thanks It works out. I cannot send a message to the player using this method.

member.getUser().openPrivateChannel().complete().sendMessage

Here the error:

[17:06:55] [ForkJoinPool.commonPool-worker-2/WARN]: [ForkJoinPool.commonPool-worker-2] ERROR RestAction - Encountered error while processing success consumer
[17:06:55] [ForkJoinPool.commonPool-worker-2/WARN]: java.lang.IllegalStateException: Preventing use of complete() in callback threads! This operation can be a deadlock cause
[17:06:55] [ForkJoinPool.commonPool-worker-2/WARN]: 	at net.dv8tion.jda.internal.requests.RestActionImpl.complete(RestActionImpl.java:216)
[17:06:55] [ForkJoinPool.commonPool-worker-2/WARN]: 	at net.dv8tion.jda.internal.requests.DeferredRestAction.complete(DeferredRestAction.java:172)
[17:06:55] [ForkJoinPool.commonPool-worker-2/WARN]: 	at net.dv8tion.jda.api.requests.RestAction.complete(RestAction.java:623)
[17:06:55] [ForkJoinPool.commonPool-worker-2/WARN]: 	at de.angxstupst.main.utils.DiscordManager.lambda$onCommand$2(DiscordManager.java:135)
[17:06:55] [ForkJoinPool.commonPool-worker-2/WARN]: 	at net.dv8tion.jda.api.requests.Request.lambda$onSuccess$0(Request.java:95)
[17:06:55] [ForkJoinPool.commonPool-worker-2/WARN]: 	at java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(Unknown Source)
[17:06:55] [ForkJoinPool.commonPool-worker-2/WARN]: 	at java.util.concurrent.ForkJoinTask.doExec(Unknown Source)
[17:06:55] [ForkJoinPool.commonPool-worker-2/WARN]: 	at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(Unknown Source)
[17:06:55] [ForkJoinPool.commonPool-worker-2/WARN]: 	at java.util.concurrent.ForkJoinPool.runWorker(Unknown Source)
[17:06:55] [ForkJoinPool.commonPool-worker-2/WARN]: 	at java.util.concurrent.ForkJoinWorkerThread.run(Unknown Source)

[MinnDevelopment]

https://github.com/DV8FromTheWorld/JDA/wiki/7%29-Using-RestAction#using-queue