Java issues 64bit

Troubleshooting General Help
1

Hi all,



I am having some problems with running most samples on my windows box, can anyone suggest anything to try. I have the latest 64bit jdk and jre installed on windows 7 but every time i try to run a sample using testchooser.exe the jmoney display loads i select a low or high res then in loads up a black screen and instantly disapears.



Can anyone suggest anything to help



Thanks in advance



Jonathan

2

Do you have an OpenGL2 compatible graphics card? Its required for jME3. Also your drivers should be up-to-date to avoid any problems.

Cheers,

Normen

3

I have updated the drivers recently i am trying to download some additional drivers as my dual sli geforce gtx 470 1.5GB cards should be able to support OpenGL 4.1. You would hope so for the price lol

4

That issue seems to be resolved but now just running a simple example returns the same way wtih HelloJME3 [Java Application C:program fils (x86)javajre6binjavaw.exe



then





WARNING: Cannot locate native library: windows/lwjgl.dll

02-Oct-2010 00:04:52 com.jme3.system.Natives extractNativeLib

WARNING: Cannot locate native library: windows/OpenAL32.dll

Exception in thread “main” java.lang.NoClassDefFoundError: org/lwjgl/LWJGLException

at java.lang.Class.forName0(Native Method)

at java.lang.Class.forName(Unknown Source)

at com.jme3.system.JmeSystem.newContextLwjgl(JmeSystem.java:184)

at com.jme3.system.JmeSystem.newContext(JmeSystem.java:241)

at com.jme3.app.Application.start(Application.java:284)

at com.jme3.app.Application.start(Application.java:267)

at com.jme3.app.SimpleApplication.start(SimpleApplication.java:90)

at com.itsafeature.test.HelloJME3.main(HelloJME3.java:14)

Caused by: java.lang.ClassNotFoundException: org.lwjgl.LWJGLException

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)

… 8 more



Sorry for all the questions. it was so easy setting up on the mac

5

I have also tried changing the build path to use the 64bit JRE System Library. Thanks for your help

6

You can’t just execute jMonkeyEngine3.jar, you need to have all the jars in the /lib folder in your classpath.

7
Momoko_Fan said:
You can't just execute jMonkeyEngine3.jar, you need to have all the jars in the /lib folder in your classpath.

Uh, yes you can, as long as all libraries are in a "lib" folder next to jMonkeyEngine3.jar The classpath entries are in the jMonkeyEngine3.jar