not work with multiple bot / NullPointerException about javacord

[Treescrub]

If you do:
DiscordBot bot1,bot2;
It will of course throw a NullPointerException if you try to call connect() because it will not have been constructed

[Bastian]

Hey, can you please show some of your code?

[code1ine]

https://github.com/poop-code/PokemonGo-Web-Crawler/blob/master/src/main/java/org/jh/pogo/crawler/bot/DiscordBot.java

if define multiple bot not work like
DiscrodBot bot1,bot2

[Treescrub]

The bot is in the server you are trying to send the message to, right?

[code1ine]

Yes. send to message to Channel
only 1 bot works.
if define 2, or more then null pointexception come out

[code1ine]

What the...
wait i will give you example code OK?

[code1ine]

`package testjavacord;

import java.io.File;

import com.google.common.util.concurrent.FutureCallback;

import de.btobastian.javacord.DiscordAPI;
import de.btobastian.javacord.Javacord;

public class DiscordTester {

private final static String TOKEN = "tokenval";
private final static String TOKEN2 = "tokenval2";
private final static String channelID4TOKEN = "336438218490000000";
private final static String channelID4TOKEN2 = "3364383390000000000";


public static void main(String[] args) {
	SampleDiscordBot bot1,bot2;
	bot1 = new SampleDiscordBot(TOKEN,channelID4TOKEN);
	bot2 = new SampleDiscordBot(TOKEN2,channelID4TOKEN2);
	bot1.connect();
	bot2.connect();

}

}

class SampleDiscordBot {
private String token;
private String channel;

private DiscordAPI 	api;


public SampleDiscordBot(String token,String channel) {
	this.token = token;
	this.channel = channel;
	
}//end Discord()


public void connect() {
	
	
	api = Javacord.getApi(token, true);
	
	
	api.connect(new FutureCallback<DiscordAPI>() {

		
		public void onFailure(Throwable t) {
			
			t.getStackTrace();
			
		}//end onFailure

		
		public void onSuccess(DiscordAPI api) {

			
			api.getChannelById(channel).sendMessage("SUCCESS");
			
		}//end onSuccess

		
	});//end connect(FutureCallback)
	
}//end connect()




public void message(String msg ,String channel) {

	
	if(msg == null && channel ==null) {
		return;
	}
	
	api.getChannelById(channel).sendMessage(msg);

}


public void message(String msg, File file ,String channel) {

	
	if(msg == null && channel ==null) {
		return;
	}
	
	if(file != null) {
		if(!file.exists()) {
			//File not exists
			
			
		}else {
			api.getChannelById(channel).sendFile(file);
		}//if file.exists
		
	}//if file not null

	

	api.getChannelById(channel).sendMessage(msg);

	file = null;
}

}
`

----DEBUG----
07:54:54.570 [pool-3-thread-1] DEBUG de.btobastian.javacord.ImplDiscordAPI - Checking token ************************************************************XDM
07:54:54.567 [pool-2-thread-1] DEBUG de.btobastian.javacord.ImplDiscordAPI - Checking token ************************************************************awE
07:54:55.058 [pool-3-thread-1] DEBUG de.btobastian.javacord.ImplDiscordAPI - Checked token ************************************************************XDM (valid: true)
07:54:55.059 [pool-3-thread-1] DEBUG de.btobastian.javacord.ImplDiscordAPI - Requesting gateway (token: ************************************************************XDM)
07:54:55.059 [pool-2-thread-1] DEBUG de.btobastian.javacord.ImplDiscordAPI - Checked token ************************************************************awE (valid: true)
07:54:55.059 [pool-2-thread-1] DEBUG de.btobastian.javacord.ImplDiscordAPI - Requesting gateway (token: ************************************************************awE)
07:54:55.069 [pool-3-thread-1] DEBUG de.btobastian.javacord.ImplDiscordAPI - Requested gateway wss://gateway.discord.gg (token: ************************************************************XDM)
07:54:55.070 [pool-2-thread-1] DEBUG de.btobastian.javacord.ImplDiscordAPI - Requested gateway wss://gateway.discord.gg (token: ************************************************************awE)
07:54:55.635 [ReadingThread] DEBUG de.btobastian.javacord.utils.DiscordWebsocketAdapter - Sending identify packet
07:54:55.635 [ReadingThread] DEBUG de.btobastian.javacord.utils.DiscordWebsocketAdapter - Sending identify packet
07:54:55.640 [ReadingThread] DEBUG de.btobastian.javacord.utils.DiscordWebsocketAdapter - Received HELLO packet
07:54:55.640 [ReadingThread] DEBUG de.btobastian.javacord.utils.DiscordWebsocketAdapter - Received HELLO packet
07:54:56.006 [Timer-0] DEBUG de.btobastian.javacord.utils.DiscordWebsocketAdapter - Sent heartbeat (interval: 41250)
07:54:56.008 [ReadingThread] DEBUG de.btobastian.javacord.utils.DiscordWebsocketAdapter - Received READY packet
07:54:56.147 [ReadingThread] DEBUG de.btobastian.javacord.utils.DiscordWebsocketAdapter - Received READY packet
07:54:56.147 [Timer-1] DEBUG de.btobastian.javacord.utils.DiscordWebsocketAdapter - Sent heartbeat (interval: 41250)
7. 27, 2017 7:54:58 AM com.google.common.util.concurrent.AbstractFuture executeListener
FATAL: RuntimeException while executing runnable com.google.common.util.concurrent.Futures$4@1bd2fe53 with executor MoreExecutors.directExecutor()
java.lang.NullPointerException
at testjavacord.SampleDiscordBot$1.onSuccess(DiscordTester.java:62)
at testjavacord.SampleDiscordBot$1.onSuccess(DiscordTester.java:1)
at com.google.common.util.concurrent.Futures$4.run(Futures.java:1132)
at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:435)
at com.google.common.util.concurrent.AbstractFuture.executeListener(AbstractFuture.java:900)
at com.google.common.util.concurrent.AbstractFuture.complete(AbstractFuture.java:811)
at com.google.common.util.concurrent.AbstractFuture.set(AbstractFuture.java:653)
at com.google.common.util.concurrent.TrustedListenableFutureTask$TrustedFutureInterruptibleTask.runInterruptibly(TrustedListenableFutureTask.java:111)
at com.google.common.util.concurrent.InterruptibleTask.run(InterruptibleTask.java:58)
at com.google.common.util.concurrent.TrustedListenableFutureTask.run(TrustedListenableFutureTask.java:75)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

07:55:00.011 [pool-2-thread-2] DEBUG de.btobastian.javacord.entities.impl.ImplChannel - Trying to send message in channel korea100 (id: 336438218490642442) (content: "SUCCESS", tts: false)
07:55:00.265 [pool-2-thread-2] DEBUG de.btobastian.javacord.entities.impl.ImplChannel - Sent message in channel korea100 (id: 336438218490642442) (content: "SUCCESS", tts: false)

if only one define discordbot gonna works. but 2 and more null point exception like this.

[Bastian]

Having multiple bots should normaly not cause any trouble even though I never tested it.
Can you please try adding a few seconds delay between the creation of the bots and also check if the ServerJoinListener is getting called?

[Bastian]

No answer since august