A is null | SpigotMC | Page 1

silent arch May 2, 2022, 9:52 AM

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Can you send me the error?

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@distant elbow

distant elbow May 2, 2022, 9:57 AM

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Cannot read the array length because "a" is null

silent arch May 2, 2022, 9:58 AM

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Is that the entire error?

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And where did you get this error

distant elbow May 2, 2022, 9:59 AM

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its when I run the command /minigames add <lobby/arena> <minigame> <worlds>
The error appears in the console

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there is more to the error but that was the only bit that seemed relevant

silent arch May 2, 2022, 10:00 AM

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You’re almost correct, cuz in the console it says where the error is

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so you can see what you need to change

distant elbow May 2, 2022, 10:03 AM

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here is more of the console output but I cant see where it says where the error is:

Caused by: java.lang.NullPointerException: Cannot read the array length because "a" is null
        at java.util.Arrays.fill(Arrays.java:3429) ~[?:?]
        at com.nikolaipatrick.MinigamesManager.MinigamesManager.onCommand(MinigamesManager.java:54) ~[MinigamesManager-1.0.0-SNAPSHOT.jar:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) ~[paper-api-1.18.2-R0.1-SNAPSHOT.jar:?]

silent arch May 2, 2022, 10:03 AM

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its enough

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see this bit:
com.nikolaipatrick.MinigamesManager.MinigamesManager.onCommand(MinigamesManager.java:54) ~[MinigamesManager-1.0.0-SNAPSHOT.jar:?]

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is that your domain?

distant elbow May 2, 2022, 10:04 AM

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com.nikolaipatrick is

silent arch May 2, 2022, 10:04 AM

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ok

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so

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MinigamesManager.onCommand(MinigamesManager.java:54) this bit says that the error is in your MinigamesManager class, on line 54

distant elbow May 2, 2022, 10:07 AM

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ahhh yes i see

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ok I think i might have found the problem

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on line 54: minigameName = args[2];

silent arch May 2, 2022, 10:10 AM

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is args[2] in bounds?

distant elbow May 2, 2022, 10:10 AM

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to run the command properly, it should be but I see what i have done wrong

silent arch May 2, 2022, 10:11 AM

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ok, gl then, and have fun

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for any further help you cvan always just DM me

distant elbow May 2, 2022, 10:11 AM

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thanks! ill keep that in mind

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ahh I got mixed up

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i thought i found the problem cos i was thinking that minigameName was a string array

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was meant to be a string array

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but it should be a string which is what it is now

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so I'm still not sure why there is a problem

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you there, @silent arch ?

silent arch May 2, 2022, 10:34 AM

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ye

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can you send the updated code?

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@distant elbow

distant elbow May 2, 2022, 10:35 AM

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yes one sec

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https://paste.md-5.net/apebeciwol.java

silent arch May 2, 2022, 10:38 AM

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what is the problem rn?

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i see

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you dont implement CommandExecutor

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https://paste.md-5.net/ajolewoqir.java

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you do need to import 2 things

distant elbow May 2, 2022, 10:39 AM

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ok I'll give that a try

silent arch May 2, 2022, 10:44 AM

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does it work?

distant elbow May 2, 2022, 10:46 AM

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I still seem to be getting the "a" is null error

silent arch May 2, 2022, 10:46 AM

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on the same line?

distant elbow May 2, 2022, 10:48 AM

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no its line 60 this time i think

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        at java.lang.Thread.run(Thread.java:833) ~[?:?]
Caused by: java.lang.NullPointerException: Cannot read the array length because "a" is null
        at java.util.Arrays.fill(Arrays.java:3429) ~[?:?]
        at com.nikolaipatrick.MinigamesManager.MinigamesManager.onCommand(MinigamesManager.java:60) ~[MinigamesManager-1.0.0-SNAPSHOT.jar:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) ~[paper-api-1.18.2-R0.1-SNAPSHOT.jar:?]
        ... 21 more

silent arch May 2, 2022, 10:50 AM

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ye, it is

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whats on line 60?

distant elbow May 2, 2022, 10:51 AM

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Arrays.fill(worldNames, null);

silent arch May 2, 2022, 10:52 AM

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that was commented right?

distant elbow May 2, 2022, 10:52 AM

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its not commented at the moment

silent arch May 2, 2022, 10:53 AM

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what do you use it for?

distant elbow May 2, 2022, 10:55 AM

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in case the user is running the command more than once, worldNames can be used more than once

silent arch May 2, 2022, 10:56 AM

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the vars are not static right?

distant elbow May 2, 2022, 10:57 AM

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what do you mean?

silent arch May 2, 2022, 10:57 AM

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did you declare worldNames static?

distant elbow May 2, 2022, 10:57 AM

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oh

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no i didnt

silent arch May 2, 2022, 10:58 AM

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than its fine, and you do should not need that line

distant elbow May 2, 2022, 10:59 AM

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but say the user used the add command to add two worlds in the same command and then used the add command a second time but only added one world in the same command

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there would be nothing to clear the second world from the previous command

silent arch May 2, 2022, 11:01 AM

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i do not understand you, but do you mean that the command copies the old worlds and putrs them into a new one to add it

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cuz rn, if soimone uses the command a second time, you haven't stored the worlds of the first command

distant elbow May 2, 2022, 11:02 AM

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silent arch cuz rn, if soimone uses the command a second time, you haven't stored the worlds...

but wouldnt the worlds from the first command still be in worldNames?

silent arch May 2, 2022, 11:03 AM

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no, as every time you execute a command it makes a new class

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i think

distant elbow May 2, 2022, 11:03 AM

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ohh i see

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so I removed the array.fill and now I have this error again in my console:

Caused by: java.lang.NullPointerException: Cannot store to object array because "this.worldNames" is null
        at com.nikolaipatrick.MinigamesManager.MinigamesManager.onCommand(MinigamesManager.java:62) ~[MinigamesManager-1.0.0-SNAPSHOT.jar:?]

heres my current code: https://paste.md-5.net/hukacucufo.java

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but its getting late for me so I need to go

silent arch May 2, 2022, 11:09 AM

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distant elbow but its getting late for me so I need to go

ok, gn

distant elbow May 2, 2022, 10:37 PM

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so I changed my code a bit so it only supports adding one world per command but i get this error in the console:

Caused by: java.lang.NullPointerException: Cannot store to object array because "this.worldName" is null
        at com.nikolaipatrick.MinigamesManager.MinigamesManager.onCommand(MinigamesManager.java:57) ~[MinigamesManager-1.0.0-SNAPSHOT.jar:?]

here is my current code: https://paste.md-5.net/webalacuhi.java

silent arch May 3, 2022, 8:32 AM

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Is that the only file?

silent arch May 3, 2022, 9:05 AM

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@distant elbow

distant elbow May 3, 2022, 9:06 AM

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yes that is the only file

silent arch May 3, 2022, 9:06 AM

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Ok, illtry to fuc it!

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Fix

distant elbow May 3, 2022, 9:08 AM

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thank you

silent arch May 3, 2022, 9:29 AM

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when do you get the error?

distant elbow May 3, 2022, 9:57 AM

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when I run /minigames add

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I think I might have just fixed it

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I added this line to make the array an object:

worldName = new String[1];

silent arch May 3, 2022, 10:00 AM

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Remove the 1

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Otherwise it will not get the memory needed

distant elbow May 3, 2022, 10:00 AM

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the compiler doesnt work if i do that but its solved the prblem

silent arch May 3, 2022, 10:01 AM

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So it works now ?

distant elbow May 3, 2022, 10:01 AM

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yes

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well kinda

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it fixed that problem but I have another question

silent arch May 3, 2022, 10:01 AM

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Tell me

distant elbow May 3, 2022, 10:02 AM

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when I use this in my code:

existingWorlds[0] = getConfig().getList(minigameName + ".lobbies");

the compiler throws an error saying:

Incompatible types. Found: 'java.util.List<capture<?>>', required: 'java.lang.String'

silent arch May 3, 2022, 10:03 AM

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Use getStringList() is it is a list of strings

distant elbow May 3, 2022, 10:03 AM

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ah ok

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hmm

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it still gives the same error as before

silent arch May 3, 2022, 10:05 AM

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At the same line?

distant elbow May 3, 2022, 10:05 AM

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yes

silent arch May 3, 2022, 10:05 AM

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Could you send the entire error?

distant elbow May 3, 2022, 10:07 AM

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thats the entire error

silent arch May 3, 2022, 10:08 AM

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In intellij or console

distant elbow May 3, 2022, 10:08 AM

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intellij

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haha how did you know I was using intellij?

silent arch May 3, 2022, 10:09 AM

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It said it on your dc

distant elbow May 3, 2022, 10:10 AM

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ooh right it does I must have turned that on

silent arch May 3, 2022, 10:10 AM

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And its also industry standard

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Is it a warning or an error

distant elbow May 3, 2022, 10:11 AM

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an error

silent arch May 3, 2022, 10:11 AM

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M can you send the line?

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On wich the error is

distant elbow May 3, 2022, 10:13 AM

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this is the line with the error:

existingWorlds[0] = getConfig().getStringList(minigameName + ".lobbies");

but I'm only putting a 0 in existingWorlds to test if it works but I plan on making it into a for loop

silent arch May 3, 2022, 10:14 AM

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Try existingWorlds.

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Add or put

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Or smth like that

distant elbow May 3, 2022, 10:14 AM

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without the [0] ?

silent arch May 3, 2022, 10:14 AM

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Ye

distant elbow May 3, 2022, 10:15 AM

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it gives the same error

silent arch May 3, 2022, 10:15 AM

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F

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Ehm

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I gtg

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I’m going to my GF

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Cya!

distant elbow May 3, 2022, 10:16 AM

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bye!

silent arch May 3, 2022, 10:16 AM

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Much success btw

#A is null