lwjgl + slick2d + jinput error on 64-bit linux

Question

I am using Linux (Ubuntu 12.04) with 64-bit java 7 and Eclipse (Indigo). On the game project we are using slick2d and along with it lwjgl. I was halted by the following errors. (fixes explained in the answer)

1. java.lang.UnsatisfiedLinkError: no lwjgl in java.library.path

2. java.lang.UnsatisfiedLinkError: no jinput-linux64 in java.library.path

3. Failed to open device (/dev/input/event8): Failed to open device /dev/input/event8

Versions:

Slick2D

Mon, 01 Oct 2012 09:54:11 +0100 Sun May 11 20:17:03 BST 2008 build=264

LWJGL (could be 2.8.5 already, but now this):

2.8.4

Answer 1

1. To fix this, follow the instructions provided in the 'slick2d' documentation

   http://www.slick2d.org/wiki/index.php/Main_Page

2. This seems to be a real bug with slick2D/lwjgl on the versions that we are currently using. To fix this you can't use 64-bit java (with linux at least). Download the 32-bit java from Oracle web site and configure this to be your IDEs runtime environment (you may need to search for more help how to do this in your particular IDE)

3. This is purely related to permissions on linux. Go to '/dev/input' and change the folder permission 'sudo chmod 644 *' so that the process can simply read what's in there.

There didn't seem to be info on how to fix this problem whole together. Hope this helps some one else.

Answer 2

Download slick and copy needed libs (jinput-linux64, lwjgl, .dll & .so files) to your java.library.path

to get the java.library.path you can do so: System.out.println(System.getProperty("java.library.path"));