java.lang.IllegalArgumentException input==null (LOCKED)
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Shawnachu
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I get that when I select a server and hit OK. I'm running XP.

InvisiblePerson
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Any other errors?

Any other errors?

Shawnachu
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No, that's it. There's a few

No, that's it. There's a few lines that show up in the cmd.exe, lemme copypaste that over.

EDIT:

Here's the lines that show up:

Autodetecting java
Testing default folder
Checking C:\Program Files\Java\jre6 folder
Found java in C:\Program Files\Java\jre6 folder
Checking C:\Program Files\Java\jre1.6.0_03 folder
Found java in C:\Program Files\Java\jre1.6.0_03 folder
Checking C:\Program Files\Java\jre1.6.0_05 folder
Found java in C:\Program Files\Java\jre1.6.0_05 folder
Checking C:\Program Files\Java\jre1.6.0_07 folder
Found java in C:\Program Files\Java\jre1.6.0_07 folder
Starting java from "C:\Program Files\Java\jre1.6.0_07\bin\java.exe"
username: shawnachu
sessionid: -5263856354959022074
loadmap_user: shawnachu
loadmap_id: 3
haspaid: true
Compass initialized
Failed to initialize device Wacom Virtual Hid Driver because of: java.io.IOExcep
tion: Failed to acquire device (8007001e)
java.lang.IllegalArgumentException: input == null!
        at javax.imageio.ImageIO.read(Unknown Source)
        at com.mojang.minecraft.e.l.<init>(Unknown Source)
        at com.mojang.minecraft.l.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)

InvisiblePerson
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To me, it looks like that

To me, it looks like that video driver is not letting java access it. Try to update your java and video driver.

mysticloopy
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mine says

mine says jang.lang.ArrayIndexOutOfBoundsException: 0

help me!!!

TimberBunny
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Same Error?

I'm getting this, slightly different, and less helpful.

Autodetecting java
Testing default folder
Checking E:\Program Files\Java\jre6 folder
Found java in E:\Program Files\Java\jre6 folder
Checking E:\Program Files\Java\jre1.6.0_07 folder
Found java in E:\Program Files\Java\jre1.6.0_07 folder
Starting java from "E:\Program Files\Java\jre1.6.0_07\bin\java.exe"
username: TimberBunny
sessionid: 6079574107474875154
server: 174.136.1.46
port: 25565
mppass: aa8f7ab9d746b05441373b98f3866120
haspaid: false
Compass initialized
java.lang.IllegalArgumentException: input == null!
        at javax.imageio.ImageIO.read(Unknown Source)
        at com.mojang.minecraft.e.l.<init>(Unknown Source)
        at com.mojang.minecraft.l.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)

The_Only_Janitor
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Same error here, no luck.

Same error here, no luck.

nickrrr
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http://www.worldofminecraft.c

http://www.worldofminecraft.com/node/3307
i had same problem i just deleted it, fully updated java, then re downloaded the game. idk worked for me.

XgenerationX
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Similar error

I'm getting a pretty similar error

Autodetecting java
Testing default folder
Checking C:\Program Files\Java\jre6 folder
Found java in C:\Program Files\Java\jre6 folder
Starting java from "C:\Program Files\Java\jre6\bin\java.exe"
Compass initialized
WARNING: Found unknown Windows version: Windows Vista
Attempting to use default windows plug-in.
java.lang.IllegalArgumentException: input == null!
        at javax.imageio.ImageIO.read(Unknown Source)
        at com.mojang.minecraft.e.l.<init>(Unknown Source)
        at com.mojang.minecraft.l.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)

I've tryed updating java, updating my driver, and redownloading the server and none of it has worked. Im using my laptop, and it isn't bad, it's run other games fine. I'm also using Vista and it's got 2GB Ram so it isn't that either.

redllama
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im sick of this. Ive had this

im sick of this. Ive had this problem for two weeks, constantly deleting everything in temp, uninstalling java and deleting minecraft. Nothing has changed. There is nothing on the internet explaining how to fix it, please if someone has any idea how to fix it please post here.....
i cant live withought minecraft :(

redllama
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im sick of this. Ive had this

im sick of this. Ive had this problem for two weeks, constantly deleting everything in temp, uninstalling java and deleting minecraft. Nothing has changed. There is nothing on the internet explaining how to fix it, please if someone has any idea how to fix it please post here.....
i cant live withought minecraft :(

redllama
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im sick of this. Ive had this

im sick of this. Ive had this problem for two weeks, constantly deleting everything in temp, uninstalling java and deleting minecraft. Nothing has changed. There is nothing on the internet explaining how to fix it, please if someone has any idea how to fix it please post here.....
i cant live withought minecraft :(

redllama
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im sick of this. Ive had this

im sick of this. Ive had this problem for two weeks, constantly deleting everything in temp, uninstalling java and deleting minecraft. Nothing has changed. There is nothing on the internet explaining how to fix it, please if someone has any idea how to fix it please post here.....
i cant live withought minecraft :(

redllama
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im sick of this. Ive had this

im sick of this. Ive had this problem for two weeks, constantly deleting everything in temp, uninstalling java and deleting minecraft. Nothing has changed. There is nothing on the internet explaining how to fix it, please if someone has any idea how to fix it please post here.....
i cant live withought minecraft :(

Pandermoninum
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Ok redllama we get it, There

Ok redllama we get it, There probaly is a Mounting Error.
Port forward or Update Java and Update the drivers to the latest

        Nuff' Said

drewbie
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please help

Autodetecting java
Testing default folder
Checking C:\Program Files\Java\jre6 folder
Found java in C:\Program Files\Java\jre6 folder
Checking C:\Program Files\Java\jre1.6.0_02 folder
Found java in C:\Program Files\Java\jre1.6.0_02 folder
Checking C:\Program Files\Java\jre1.6.0_03 folder
Found java in C:\Program Files\Java\jre1.6.0_03 folder
Starting java from "C:\Program Files\Java\jre1.6.0_03\bin\java.exe"
Error occurred during initialization of VM
java/lang/NoClassDefFoundError: java/lang/Object
ERROR: Failed to run minecraft
JAVA6="C:\Program Files\Java\jre1.6.0_03\bin\java.exe"
Press any key to continue . . .

I done exactly as it says with the custom client, and when i click run i get the above. Anyone got any ideas?

magicMW22
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Help!!!!!!!!!!!!!!!!!!!!!

i cant do it it just shows: java.lang.IlligalArgumentExcepiton:input = = null!
and i´m jusing vista HELP!!

kazacku
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ARGG I HATE YOU ERROR!!!

I have had my laptop for around two years now and i have whipped and re-loaded my laptop two times, each time exept for this time minecraft worked fine. I was trying to start minecraft classic ONLINE, but i had that error message, so i re-downloaded, and re-installed java. still nothing. so, as a young mind, i figured it was somthing temporarily wrong with the classic version. so i downloaded the full version onto my computer. and quess what, it still had the same problem, "MINECRAFT HAS CRASHED!" so i clicked 'more information' and guess what, EXACT SAME ERROR MESSAGE!!!
i <3 minecraft and i really need some help... :'(

Platinuum
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My problem looks like this...

Autodetecting java
Testing default folder
Checking C:\Program Files\Java\jre6 folder
Found java in C:\Program Files\Java\jre6 folder
Checking C:\Program Files\Java\jre1.6.0_02 folder
Found java in C:\Program Files\Java\jre1.6.0_02 folder
Starting java from "C:\Program Files\Java\jre1.6.0_02\bin\java.exe"
Exception in thread "main" java.lang.NoClassDefFoundError: com/mojang/minecraft/
MinecraftApplet
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClass(Unknown Source)
        at java.security.SecureClassLoader.defineClass(Unknown Source)
        at java.net.URLClassLoader.defineClass(Unknown Source)
        at java.net.URLClassLoader.access$000(Unknown Source)
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClassInternal(Unknown Source)
ERROR: Failed to run minecraft
JAVA6="C:\Program Files\Java\jre1.6.0_02\bin\java.exe"
Press any key to continue...
Anyone ? :]
I need help, I really don't know what to do. Please, help me :D.

dizzyispower
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Had this since last update

I just started having this error.  I end up having to Ctrl+Alt+Delete, to close it.

kriz247
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help?

i sign into minecraft, i click on singleplayer (classic) coz i havn't downloaded the beta yet, and it comes up like this straight away -.- so basicly, i cna't play minecraft, anyone know how to help ? =/

Robert_7890
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[ FIX ]

wow i got it to work, it was dependant in how many folders it was it.
I took it out of my games folder which is in another folder and suddenly it worked. apprantly if World of Minecraft is in a folder within another folder it wont work.

dizzyispower
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Wow is right

Robert is a genius his solution really does work! Thank you robert!

brettchad
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help!

  Bad video card drivers!      
     I hve to deal with an old computer=(
  -----------------------     

Minecraft was unable to start because it failed to find an accelerated OpenGL mode.
This can usually be fixed by updating the video card drivers.

 

--- BEGIN ERROR REPORT 7fe0271 --------
Generated 1/10/12 9:55 PM

Minecraft: Minecraft Beta 1.7.3
OS: Windows XP (x86) version 5.1
Java: 1.6.0_29, Sun Microsystems Inc.
VM: Java HotSpot(TM) Client VM (mixed mode), Sun Microsystems Inc.
LWJGL: 2.4.2
[failed to get system properties (java.lang.NullPointerException)]

org.lwjgl.LWJGLException: Pixel format not accelerated
 at org.lwjgl.opengl.WindowsPeerInfo.nChoosePixelFormat(Native Method)
 at org.lwjgl.opengl.WindowsPeerInfo.choosePixelFormat(WindowsPeerInfo.java:52)
 at org.lwjgl.opengl.WindowsDisplay.createWindow(WindowsDisplay.java:185)
 at org.lwjgl.opengl.Display.createWindow(Display.java:311)
 at org.lwjgl.opengl.Display.create(Display.java:856)
 at org.lwjgl.opengl.Display.create(Display.java:784)
 at org.lwjgl.opengl.Display.create(Display.java:765)
 at net.minecraft.client.Minecraft.a(SourceFile:294)
 at net.minecraft.client.Minecraft.run(SourceFile:716)
 at java.lang.Thread.run(Unknown Source)
--- END ERROR REPORT 857e5262 ----------

Bummer