Minecraft in jdk 1.7.0_u2 x64

Question

I have Ubuntu 11.10 64-bit and I installed JDK 1.7.0 update 2 x64 via webupd8 page. But currently I have problem with minecraft game. After downloading launcher from Minecraft.net and lauch the game by java -jar /home/zrebec/Downloads/minecraft.jar launcehr is launched normaly, after login the game download the updates but then I got just the black screen with this in terminal:

Setting user: zrebec, -356009615199623309
Exception in thread "Minecraft main thread" java.lang.UnsatisfiedLinkError: /home/zrebec/.minecraft/bin/natives/liblwjgl.so: /home/zrebec/.minecraft/bin/natives/liblwjgl.so: wrong ELF class: ELFCLASS32 (Possible cause: architecture word width mismatch)
at java.lang.ClassLoader$NativeLibrary.load(Native Method)
at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1928)
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1825)
at java.lang.Runtime.load0(Runtime.java:792)
at java.lang.System.load(System.java:1059)
at org.lwjgl.Sys$1.run(Sys.java:69)
at java.security.AccessController.doPrivileged(Native Method)
at org.lwjgl.Sys.doLoadLibrary(Sys.java:65)
at org.lwjgl.Sys.loadLibrary(Sys.java:81)
at org.lwjgl.Sys.<clinit>(Sys.java:98)
at org.lwjgl.opengl.Display.<clinit>(Display.java:132)
at net.minecraft.client.Minecraft.a(SourceFile:180)
at net.minecraft.client.Minecraft.run(SourceFile:648)
at java.lang.Thread.run(Thread.java:722)

Please anyone can help me with this? I think that problem will be in architecture becase:

liblwjgl.so: /home/zrebec/.minecraft/bin/natives/liblwjgl.so: wrong ELF class: ELFCLASS32 (Possible cause: architecture word width mismatch)

Any idea please?

I know, maybe this one is off topic because maybe its not Ubuntu problem maybe but in 64-bit works all perfectly and I think that accepted answer can help to many users and can make better playing games under linux. Really. Thank you very much for any idea.

Why not stick to openjdk-6-jre? My brother is playing Minecraft on a 64-bit Kubuntu 11.10 without issues. — Lekensteyn, Feb 02 '12 at 12:01
With openjdk-6-jre I had some issues during the game. After around 2 - 3 minus the game flashy and then crash down :( Maybe som bugs in game? But in windows I havent any problems with this. I can play hours and hours and nothing. And there I using Oracle JDK 1.7 (JDK because Im junior Java programmer - now learning Java). Thanks — Bambi Bunny, Feb 02 '12 at 12:08
I'd try a 32bit version of Java, at least that is what I would suspect to be the problem with this error message. — Mad Scientist, Feb 02 '12 at 12:29
And so.... problem resists with openjdk-7-jre-amd64 :) I installed openjdk java version "1.7.0_147-icedtea" OpenJDK Runtime Environment (IcedTea7 2.0) (7~b147-2.0-0ubuntu0.11.10.1) OpenJDK 64-Bit Server VM (build 21.0-b17, mixed mode) — Bambi Bunny, Feb 02 '12 at 12:30
Mine works with openjdk but not with the Oracle jdk. Using Minecraft 1.2.5. — Luis Alvarado, Apr 18 '12 at 18:38

score 19 · Answer 1 · answered Feb 04 '12 at 12:03

19

I have the same problem but I installed via webupd8 - Install Oracle Java (JDK) 7 in Ubuntu via PPA Repository, searching the internet I found this script (I'm adapted the script to my system) but basically this is:

#!/bin/bash
export LD_LIBRARY_PATH="/opt/java/jre/lib/amd64"
java minecraft.jar

The script for my system:

#!/bin/bash
export LD_LIBRARY_PATH="/usr/lib/jvm/java-7-oracle/jre/lib/amd64"
java -jar Minecraft.jar

I hope this will be useful

answered Feb 04 '12 at 12:03

JoZ3

639
4
13

1

Yes, great solution :) This is what I found a around hour ago :) Thank you very much – Bambi Bunny Feb 04 '12 at 14:23
1

The LD_LIBRARY_PATH was the missing piece for me. Thank you! – Justin Force May 17 '12 at 18:06

score 8 · Answer 2 · answered Apr 18 '12 at 17:17

Found this on a Fedora forum and it worked nicely for me running 12.04 Ubuntu-64bit with OpenJDK7u3

Link

"I just had the same problem, and here is what worked for me:

Go to http://lwjgl.org/download.php

Click the link to download the newest stable release

Download lwjgl-x.x.x.zip (lwjgl-2.8.3.zip at the time of writing)

Go to your home folder and press ctrl + h to show your hidden files

Go to .minecraft/bin and copy the matching .jar files from the jar folder in the zip that you downloaded into there

Copy the .so files from the native/linux folder in the zip file to .minecraft/bin/natives

Launch Minecraft

Hope that helps! "

Life saver! I was getting so damn frustrated. – CatDadCode Jun 14 '12 at 04:35 — CatDadCode, Jun 14 '12 at 04:35

mid_kid · Accepted Answer · 2013-09-14T15:23:55.930

3

Instead of launching a script everytime you want to run minecraft, you can also add the libraries to the ldconfig:

sudo su -c "echo [path to java]/lib/amd64(or i386) > /etc/ld.so.conf.d/java.conf"
sudo ldconfig

now just run minecraft by opening it with java in the file manager

(example of line 1: sudo su -c "echo /usr/lib/jvm/oracle-java/lib/amd64 > /etc/ld.so.conf.d/java.conf")

edited Sep 14 '13 at 15:23

answered Dec 29 '12 at 20:14

mid_kid

691

2

Instead of sudo su you can use echo ... | sudo tee /etc/ld.so.conf.d/java.conf – l0b0 Feb 15 '13 at 17:32
@l0b0 Or sudo su -c "echo ... > /etc/ld.so.conf.d/java.conf" Thanks for your suggestion anyways. – mid_kid Feb 18 '13 at 16:19
1

You're right. The point was simply to run as little as possible as root. – l0b0 Feb 18 '13 at 16:33

score 2 · Answer 4 · answered Jul 14 '12 at 00:40

If you use this type of Java, http://www.wikihow.com/Install-Oracle-Java-on-Ubuntu-Linux, then this is the correct code you need.

#!/bin/bash
export LD_LIBRARY_PATH="/usr/local/java/jre1.7.0_05/lib/amd64"
java -jar /path to your minecraft.jar file

Thank-you JoZ3, I just slightly modified your code.

score 1 · Answer 5 · edited Sep 17 '12 at 13:39

@JoZ3 Thank you very much. You solved my problem. Trick was to redirect that path. Just a small tut for beginners. Before reading this, I assumed that you all installed JDK 7 like JoZ3 wrote in his post. (Oracle JDK is needed.)

Download minecraft.jar. Place it in some folder on desktop.
Create a text document and paste JoZ3's commands in it. This is the required command and we are creating a shell script.
```
#!/bin/bash  
export LD_LIBRARY_PATH="/usr/lib/jvm/java-7-oracle/jre/lib/amd64"  
java -jar Minecraft.jar 
```
Save it as, for example, fix.sh.
Make sure you run chmod fix.sh with this command. cd to the directory where the file is located and type in the terminal the following commands:
```
sudo chmod 755 fix.sh
```
Run fix.sh from terminal by dragging it to the terminal and pressing Enter, or by manual typing its location in terminal and pressing Enter.

Game should work now! It solved my problem.

score 0 · Answer 6 · answered Feb 04 '12 at 14:21

So... I found the solution :)

By this page I crated this script and its works perfectly :) I remove OpenJDK and after executing this script the game works :)

export LD_LIBRARY_PATH="/usr/lib/jvm/jdk1.7.0_02/jre/lib/amd64"
java -Xmx1024M -Xms512M -cp minecraft.jar net.minecraft.LauncherFrame

score 0 · Answer 7 · answered May 30 '12 at 14:33

0

I downloaded the windows exe, let it load, took the minecraft jar out of windows, I found that that works for me(since the one for linux on their site aint)

answered May 30 '12 at 14:33

Dr_Bunsen

4,713
4
28
40

score 0 · Answer 8 · edited Oct 12 '12 at 13:06

0

This worked to me:

#!/bin/bash
export LD_LIBRARY_PATH="/usr/lib/jvm/java-7-oracle/jre/lib/amd64"
java -Xmx1024M -Xms512M -cp minecraft.jar net.minecraft.LauncherFrame

I adapted the directory because I use the JAVA by ORACLE. This solved the mystery of the black screen. (:

edited Oct 12 '12 at 13:06

answered Jul 10 '12 at 23:09

Rafael Biagioni de Fázio

1

score 0 · Answer 9 · answered Jul 24 '13 at 03:27

0

Simple fix, download the .jar file off the minecraft website, move it to your desktop, right click, properties, check make file executable and your done.

answered Jul 24 '13 at 03:27

Sean

1

Minecraft in jdk 1.7.0_u2 x64

9 Answers9

Linked

Related