Java lang nullpointerexception group как исправить minecraft - Исправление недочетов и поиск решений вместе с Examum.ru

The fact that Minecraft is not one of the most visually demanding games doesn’t make it any less of a potential headache for gamers.

The java.lang.nullpointerexception group error is the most prevalent problem encountered by players in Minecraft, and we’ll be covering it in this post.

To assist you in resolving this problem, we have detailed the potential causes and solutions to this error.

What causes the java.lang.nullpointerexception group error in Minecraft?
- 1. Faulty server:
- 2. Older Version of Java Installed:
- 3. The System Firewall is interfering with your connection:
- 4. Errors during Game or Java Setup:
Fix: Minecraft java.lang.nullpointerexception group error
- Method 1: Hold off until the server is up and running.
- Method 2: Download and install Java
- Method 3: Upgrade Java to it’s latest version
- Method 4: Reinstall Minecraft
- Method 5: Disable the Firewall, Antivirus, and the VPN
- Method 6: Reinstall Java on the device
- Method 7: Reinstall IDE or Code Editor on the device

What causes the java.lang.nullpointerexception group error in Minecraft?

Short Answer: The Minecraft null pointer exception error may be caused due to a faulty server, an outdated version of Java, a firewall or an antivirus interfering with the connection, or errors during a game or Java setup.

1. Faulty server:

When a server-side problem occurs, it is neither the player’s Minecraft installation nor their computer’s configuration that is at fault. That’s because of an issue with the server itself.

2. Older Version of Java Installed:

There might be a mismatch between the system’s Java version and the game, app, or website, causing the issue. If you haven’t even bothered to install Java in the first place, you could also run into this problem.

3. The System Firewall is interfering with your connection:

The problem might be caused by the system firewall incorrectly preventing Java execution, which would prevent the game, application, or website from executing its Java modules.

4. Errors during Game or Java Setup:

In the event of a corrupted installation of the game or Java, crucial components of either may fail to load, leading to an error message.

Method 1: Hold off until the server is up and running.

Connecting to this testing server at the following IP: test.prisonfun.com, is the most effective method for determining whether or not an issue has occurred on the server.

If you can establish a connection to this server, then there is nothing wrong with the game client or the settings on your computer. Because this specific server is constantly up to date and is compatible with all versions of Minecraft, it is the ideal location to identify and troubleshoot any possible connection issues.

If the player is unable to establish a connection to this server, the problem is most likely on the player’s end rather than on the server’s side. The following are some potential remedies that players might attempt to correct the issue.

Method 2: Download and install Java

Java can be installed on practically any operating system, even mobile phones. Windows computers, Macs, various distributions of Linux, and so on.

If a problematic game requires Java on a user’s system but Java is not installed on that system, then this can cause an error message because Java is not available for the execution of the related modules. Some examples of problematic applications, games, and websites include Minecraft.

It’s possible that having Java installed on the user’s computer will fix this issue.

Step 1: Open a web browser of your choice.
Step 2: Go to the Java website to install Java.
Step 3: Click on Agree and Start Free Download.

Choose the download that corresponds to the operating system and system type. Remember that if the online game needs a certain version of Java, you will need to obtain that specific version before continuing.

Step 4: Wait till the Java download is finished.
Step 5: Now, shut down all browser windows or any running applications.
Step 6: Right-click on the downloaded installer of Java
Step 7: Click on Run as Administrator.
Step 8: Then, just follow the on-screen instructions to set up Java.
Step 9: After finishing the set-up, reboot your system.

Once you’ve restarted, you may adjust Java’s settings to meet the needs of the game.

Step 10: Launch the game and check if the problem is resolved.

Method 3: Upgrade Java to it’s latest version

If the computer is using an older version of Java, it may result in incompatibility with the website or program that is giving the user trouble.

Because of this incompatibility, the execution of certain Java-related modules may not proceed as expected, which may result in this error. Here, upgrading the Java version of the system to the newest build may fix the issue.

Step 1: Hit the Windows key and search for Java.
Step 2: Select Configure Java and go to the Update tab.
Step 3: Select the Update Now button
Step 4: Wait for the update process to finish.
Step 5: Restart your system after the update is done.
Step 6: After restart, check if the java.lang.nullpointerexception group error is resolved.

Method 4: Reinstall Minecraft

The java.lang.nullpointerexception group error may occur in Java-based games (like Minecraft) if their installation is flawed and its modules are unable to carry out their intended function. It’s possible that reinstalling the game will fix the issue here. We’ll go down how to reinstall Minecraft to clear things up.

Step 1: Right-click on the Windows and select Run.
Step 2: Go to the following: %appdata%
Step 3: Launch the Minecraft folder and backup the Saves folder
Step 4: Now, select Windows and look for Minecraft.
Step 5: After that, right-click on it and click on Uninstall.

Then, after confirming the uninstallation, just adhere to the on-screen instructions to remove Minecraft.

Step 6: After uninstalling, restart the system.
Step 7: Upon restart, navigate to the following directory in Run: %appdata%
Step 8: Delete the Minecraft folder
Step 9: Now, navigate to the following directory in Run: AppData
Step 10: Erase all the Minecraft-related folders

Erase any Minecraft-related files and folders from the following three locations: Local, Local Low, and Roaming

Step 11: Utilize the official Minecraft installer to reinstall Minecraft.
Step 12: After reinstalling, check if the issue is resolved.

Method 5: Disable the Firewall, Antivirus, and the VPN

When playing with others online, Minecraft might be affected by firewalls, antivirus software, and virtual private networks (VPNs). When everything else fails, players may try turning off the following:

Step 1: Hit the Windows Key + R
Step 2: Enter “control” in the Run menu and select enter
Step 3: Select “System and Security”
Step 4: Click on “Windows Firewall”
Step 5: Select “Turn windows defender firewall on or off”
Step 6: Shut down the firewall for both public and private network

Turning off the antivirus and VPN is less straightforward than turning off the firewall. It will depend on the specific antivirus and VPN being used. If players are using a specific type of antiviruses such as Norton, McAffee, or Avast, they must be fully disabled in their control panels.

If players are connected to any VPN, it should be turned off and disconnected. After doing this, players can check if the null pointer exception exists. It’s easier to disable the firewall than it is to disable the antivirus software and the virtual private network. That depends on the antivirus and VPN software being utilized.

Method 6: Reinstall Java on the device

The game, program, or website may not be able to function properly because of a faulty installation of Java on your machine, which would prevent it from accessing certain Java libraries. In this case, removing and then reinstalling Java on your computer may solve the problem.

Step 1: Right-click on Windows and select Apps & Features.
Step 2: Expand the Java option and select Uninstall.

Then confirm to uninstall Java and follow the prompts on the screen to uninstall Java.

Step 3: After uninstalling, reboot your system.
Step 4: Launch the Run command box

After restarting, launch the Run command box by tapping on the Windows + R keys.

Step 5: Clear the Java remnants from the following directories:
C:Program FilesJava
C:ProgramDataOracleJava
C:Program Files (x86)Common FilesJava
C:Program Files (x86)OracleJava
ProgramData
AppData
temp
%temp%

Following this, it is necessary to reinstall the most recent version of Java and turn off the system’s firewall (or the Java version required by the game).

The null pointer exception group error in Minecraft should go away if you restart your computer after the reinstallation is complete.

Method 7: Reinstall IDE or Code Editor on the device

If a developer has eliminated all other potential causes, such as errors in the code or problems on the server side, a faulty installation of an integrated development environment (IDE) or code editor (such as Adobe ColdFusion) may be to blame for the error message.

The problem may be fixed by reinstalling the integrated development environment (IDE) or code editor. Please remember to make a copy of any code or data that you deem crucial before continuing.

Step 1: Try switching back to the IDEs/code editor’s factory settings

Try switching back to the IDEs or code editor’s factory settings to see if it helps fix the problem (maybe by utilizing the default skin or theme, such as metallic).

Step 2: If not, choose “Apps & Features” from the Windows context menu.
Step 3: Expand the Adobe ColdFusion option and click on Uninstall.

If you’re sure you want to get rid of Adobe ColdFusion, confirm the uninstall and then follow the on-screen instructions.

Step 4: Reboot your system
Step 5: After restarting, right-click on Windows.
Step 6: Choose Run and then delete the ColdFusion traces

By clicking the Run button, you may remove all traces of ColdFusion from the system’s:

temp

%temp%

%ProgramData%

Program Files

Program Files (x86)

appdata

Step 7: Reinstall Adobe ColdFusion and check if the error is resolved.

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Источник

My friend is having a really annoying problem with his minecraft but he doesn’t have a SE account so I thought I’d ask this for him: Whenever he tries to log onto a server he gets this message:

java.lang.NullPointerException group.

We have tried:

Reinstalling minecraft(including the .minecraft folder),
Reinstalling java,
Eradicating everything java related on his PC,
Disabling his antivirus,
Flushing the DNS cache,
signing off and signing in to minecraft,
Restarting his PC,
Raging

How can we fix this?

user143228

6,63211 gold badges45 silver badges85 bronze badges

asked Aug 20, 2016 at 17:14

Your problem is already fixed probably, but for the people who are searching for a fix, follow my steps

Search for CMD and run it as administrator
Type in the bar: netsh winsock reset
It should be fixed!
If it still doesn’t work, try contacting Mojang, the creators of Minecraft

Vemonus

63.5k63 gold badges265 silver badges400 bronze badges

answered Mar 23, 2017 at 19:53

If you are playing newer snapshots, This was a recent bug in the 17w14-16

They seem to have finally fixed it in 17w17a/b

It seemed to be related to a number of new additions like advancements and parrots.

Update your server_jar and your minecraft client to 17w17b (current)

If you are getting this issue on 1.11.2 release. Then open a bug report at bugs.mojang.com

answered Apr 30, 2017 at 1:42

This works for real. My friends and I have tried this and it worked. now i can play Minecraft no problem. So try this. If Minecraft has the dull error go to your folder. press minecraft installer. Press repair and finish let it redo that. Then go to launch options and delete all the modes that are the same. like The latest release and there is a 1.12.2 . Delete that 1.12.2 . Please try this it worked for me and my friends I hope it does for you!

answered Apr 29, 2018 at 20:06

This happened for me too, i realized that i was using the Public IP Adress, you must use the IPV4 Adress, that can be found by typing «ipconfig» to CMD. Hope this Helps!

answered Apr 17, 2021 at 13:57

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java.lang.nullpointerexception: group

My husband is having trouble connecting to my server when i try to open to Lan. It was working yesterday and now after turning both mine and his pc’s off for the night he cant connect.
He keeps getting this error:
java.lang.nullpointerexception: group
Sometimes on my screen i can see that he has joined the game, then a second later it reads that he has left the game. On his screen it just says «Failed to connect to the server disconnected”
Hope someone can help

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#1

May 24, 2017
Pyth3rEx
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Hey guys,

I am having this issue with joining a service with my account (paid account). After reload it gives me «Invalid session (try restarting your game)».

Here is the console output:

[code][code]Couldn’t connect to server
java.lang.NullPointerException: group
at io.netty.bootstrap.AbstractBootstrap.group(AbstractBootstrap.java:80)
at ek.a(SourceFile:264)
at awz$1.run(SourceFile:59)[/code]

and here is the console output: (I have full access to the server and files)
[code] 25.05 03:04:18 [Disconnect] User [email protected][id=<null>,name=Pyth3rEx,properties={},legacy=false] (/104.171.225.66:36073) has disconnected, reason: Disconnected[/code]

Hope to hear back for you guys.. Thanks for the help.[/code]
#2

May 24, 2017

That usually means you have more than one instance of Minecraft open (even if they are not all visible to you).
#3

May 24, 2017
Pyth3rEx
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Well I do play on a modded server who has it’s own launcher but I do quit it and there is no «logoff» option… is there a way to force the logoff?
#4

May 25, 2017

Well for Windows you’ll usually see something like «javaw.exe» that shows up in the task manager if the process didn’t actually quit properly. Once you quit your launcher you could look to see if one of those remain active in the task manager — force quitting that extra task running ought to solve your problem.

Even vanilla Minecraft has this annoying tendency to not quit properly even if you do quit the launcher so sometimes an extra java process is left running — then next time you launch MC it can’t connect to any servers because it’s part of the annoying piracy check (which prevents you from using two computers to join the same server).

It’s a common bug and Mojang refuses to fix it despite years of complaints.
#5

May 25, 2017
Pyth3rEx
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Well I restarted my computer since, and using OSX task manager does not exist. It’s really akward… There is NOTHING running, nowhere.. but still does it. Akward….
#6

May 25, 2017

Weird, that’s usually the cause for Windows. Haven’t played Minecraft on my Macbook Pro yet.

Something else I found about this issue is that you might try clicking slower as you click through the menus on the launcher to the server to join — apparently there’s another bug with regards to multiplayer in this regard that if you click through the menus too fast you’ll get the same error.

Of all the games I have played in my life Minecraft can really be the most irritating to troubleshoot. Hopefully you get it figured out
#7

May 25, 2017
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Weird, that’s usually the cause for Windows. Haven’t played Minecraft on my Macbook Pro yet.

Something else I found about this issue is that you might try clicking slower as you click through the menus on the launcher to the server to join — apparently there’s another bug with regards to multiplayer in this regard that if you click through the menus too fast you’ll get the same error.

Of all the games I have played in my life Minecraft can really be the most irritating to troubleshoot. Hopefully you get it figured out

well I have the head of a potato now… spend my days trouble shooting it… I’ve been playing on a modded server with a modded launcher at first and I think the issue is that it dosn’t unlog me properly… Brain****….
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Type:

Bug
Resolution:

Invalid
Fix Version/s:

None
Affects Version/s:

Minecraft 14w34c
Environment:

Windows 7 x64, java 1.7.0_60.

Confirmation Status:

Unconfirmed

When I look at my multiplayer server, it says «Can’t connect to server». I can ping it just fine (192.168.1.150), it’s a local machine so I don’t need to open any ports. It worked on the previous snapshot. I try doing a direct connect to 192.168.1.150, and I get «NullPointerException: group».

My log file shows this:

[22:26:34] [Client thread/INFO]: Connecting to 192.168.1.150, 25565
[22:26:34] [Server Connector #1/ERROR]: Couldn't connect to server
java.lang.NullPointerException: group
	at io.netty.bootstrap.AbstractBootstrap.group(AbstractBootstrap.java:79) ~[netty-all-4.0.15.Final.jar:4.0.15.Final]
	at gr.a(SourceFile:220) ~[14w34c.jar:?]
	at bvx.run(SourceFile:59) [14w34c.jar:?]

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relates to

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(21 is duplicated by, 1 relates to)

Источник

What causes the java.lang.nullpointerexception group error in Minecraft?

1. Faulty server:

2. Older Version of Java Installed:

3. The System Firewall is interfering with your connection:

4. Errors during Game or Java Setup:

Method 1: Hold off until the server is up and running.

Method 2: Download and install Java

Method 3: Upgrade Java to it’s latest version

Method 4: Reinstall Minecraft

Method 5: Disable the Firewall, Antivirus, and the VPN

Method 6: Reinstall Java on the device

Method 7: Reinstall IDE or Code Editor on the device

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