[Solved] Properties file

Troubleshooting General Help
1

So after launching a test program I'm working on, I stupidly selected JOGL in the properties dialog.  Now when I start up the program it crashes with the following error:


java.lang.NoClassDefFoundError: javax/media/opengl/GL
   at com.jme.system.jogl.JOGLSystemProvider.getDisplaySystem(JOGLSystemProvider.java:57)



I should have selected lwjgl b/c thats what I have installed.

So the dialog no longer comes up after starting the program.  I am using a StandardGame.  I've set the following on it.

game.setConfigShowMode(AbstractGame.ConfigShowMode.AlwaysShow);


before calling "start()".

I can't locate the properties.cfg file to delete it.

What should I do?

Thanks

Solution

The user Preferences should be in: $HOME/.java/.userPrefs
2

The properties.cfg get created in the directory your application gets launched from. If you are running your app from eclipse, then you find it in the project directory.

3

There is no properties file in the root directory.



This is what the run script looks like


#!/bin/bash

jme=/opt/jmonkeyengine
lwjgl=/opt/lwjgl-2.0rc1

CP=.
CP=$CP:$lwjgl/jar/lwjgl.jar
CP=$CP:$lwjgl/jar/lwjgl_util.jar
CP=$CP:$lwjgl/lwjgl_util_applet.jar
CP=$CP:$jme/target/jme.jar
CP=$CP:$jme/target/jme-awt.jar
CP=$CP:$jme/target/jme-audio.jar
CP=$CP:$jme/target/jme-effects.jar
CP=$CP:$jme/target/jme-model.jar
CP=$CP:$jme/target/jme-terrain.jar
CP=$CP:$jme/target/jme-scene.jar
CP=$CP:$jme/target/jme-font.jar
CP=$CP:$jme/target/jme-gamestates.jar
CP=$CP:$jme/target/jmetest.jar
CP=$CP:build_client

java -cp $CP Game



Here is the code that I am using to start the game.


public class Game{

    private StandardGame game;

    public Game(){
        game = new StandardGame("Test");
        game.setConfigShowMode(AbstractGame.ConfigShowMode.AlwaysShow);
        game.start();
    }
    public void quit(){
        game.shutdown();
    }




Here is the full exception


Dec 9, 2008 8:53:12 PM com.jmex.game.DefaultUncaughtExceptionHandler uncaughtException
SEVERE: Main game loop broken by uncaught exception
java.lang.NoClassDefFoundError: javax/media/opengl/GL
   at com.jme.system.jogl.JOGLSystemProvider.getDisplaySystem(JOGLSystemProvider.java:57)
   at com.jme.system.DisplaySystem.getDisplaySystem(DisplaySystem.java:283)
   at com.jme.system.DisplaySystem.getDisplaySystem(DisplaySystem.java:184)
   at com.jmex.game.StandardGame.initSystem(StandardGame.java:262)
   at com.jmex.game.StandardGame.run(StandardGame.java:185)
   at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.ClassNotFoundException: javax.media.opengl.GL
   at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
   at java.security.AccessController.doPrivileged(Native Method)
   at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
   at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
   at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)
   at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
   at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)

4

StandardGame saves its configuration in windows in the registrty.



In Linux i guess its some file somewhere in your ~ home directory?

5

Its in GNU/Linux.



Do you know what the file name is supposed to be?  I don't see it in my home dir even when I do an

ls -a

6

actually it uses java's Preferences System

The user Preferences should be in: $HOME/.java/.userPrefs

see: http://www.dpunkt.de/java/Programmieren_mit_Java/Die_Umgebung_eines_Java_Programms/13.html#id343

7

Core-Dump … you rock!!!