Help loading Xith and other libraries on Windows

Engines, Libraries and Tools Xith3D Forums
#21

[quote]The exception ClassNotFoundException means that Java can not find the given class in your classpath. In this case, the class in question is " net.java.games.jogl.impl.windows.WindowsGLContextFactory".

Have you checked your classpath for this class? I’m guessing you havn’t so I’ll have a look myself. I will make the assumption that you have assumed this class, being related to JOGL is in the jogl.jar file.

Lets take a look at that file:


$ wget http://www.kinostudios.com/jws/libs/jogl.jar
$ unzip -l jogl.jar | grep WindowsGLContextFactory

Interesting - there was no output from grep - so jogl.jar doesn’t have this class file. I won’t look at the other .jar’s in your class path as I am pretty sure you are expecting jogl.jar to have this class.

Can you “normally” expect jog.jar to have this file? Lets compare the
output from a known “good” jogl.jar file (this one straight from Xith3D CVS).


$ unzip -l ~/proj/xith3d/third-party/jogl/jogl.jar | grep WindowsGLContextFactory
     2278  04-29-04 14:58   net/java/games/jogl/impl/windows/WindowsGLContextFactory$1.class
      771  04-29-04 14:58   net/java/games/jogl/impl/windows/WindowsGLContextFactory$2.class
     3504  04-29-04 14:58   net/java/games/jogl/impl/windows/WindowsGLContextFactory.class

It appears that jogl.jar usually has this class file, but the version you are using isn’t the one from Xith3D CVS and doesn’t have this file.

Will.
[/quote]
Yet once again you save me. Thank you for spending the time to help me :slight_smile: I don’t know why it didn’t have those classes. It makes no sense. Sometimes I thought I was using the one from the Xith package, and other times I think I might have been using the one from the JOGL site. I don’t know why these classes weren’t included in any of the jars I was using, but after redownloading it again straight from the xith third-party’s folder it worked. Perhaps you might know why those jars I had didn’t include these rather essential windows classes?

#22

You’re welcome.

At a guess I would say you were using a very old version of JOGL which had seperate .jar’s for each platform with platform-specific class files. It’s easy to get confused on the jogl site and download an old version. Always best to get it from Xith3D (we only guarentee Xith3D to work with our CVS version of JOGL).

Don’t forget to make use of OS X’s handy unix tools too (like the unzip -l | grep combo).

Will.