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  Including .jar files in a classpath (Eclipse)  (Read 1153 times)
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Offline Eli Delventhal

JGO Kernel


Medals: 42
Projects: 11


Game Engineer


« Posted 2006-01-11 23:28:26 »

Hey guys, a very noob question.

I usually cheat and put .jar files in my Java Extensions folder, which works fine aside from version issues and exporting a product to other people. I never bothered to learn the correct way to do this. In Eclipse, if I drag the .jar into the Package Explorer, it works fine while using the Run... menu, but if I export a .jar I have problems with the inclusion. The classpath when in the package explorer should be the same directory, but even when I export a .jar and include the used .jar library in the same folder, it does not work correctly.

How exactly can I bundle .jar libraries into an exported .jar application.

See my work:
OTC Software
Offline hvor2

Junior Member




Beyond mind, there is an awareness...


« Reply #1 - Posted 2006-01-12 09:38:20 »

Demonpants, it's still early for me Wink, but I think I understand your problem.
You should make a manifest file by yourself and tell eclipse that you have one when building .jar (export). Manifest should look something like this:
1  
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Manifest-Version: 1.0
Class-Path: lwjgl.jar lwjgl_devil.jar lwjgl_util.jar anyexternalJar.jar ... (this should be in the same dir)
Main-Class: (your main class   package.MainClass)

hope it helps ...

Offline Eli Delventhal

JGO Kernel


Medals: 42
Projects: 11


Game Engineer


« Reply #2 - Posted 2006-01-13 01:05:29 »

Ah, good idea. I'll try that. Thanks hvor.

See my work:
OTC Software
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Offline Jeff

JGO Coder




Got any cats?


« Reply #3 - Posted 2006-01-17 00:30:06 »

I think it may also be possible to tell the jar packager to actually include the neede classes from your library jar oin the single application jar...

Got a question about Java and game programming?  Just new to the Java Game Development Community?  Try my FAQ.  Its likely you'll learn something!

http://wiki.java.net/bin/view/Games/JeffFAQ
Offline Eli Delventhal

JGO Kernel


Medals: 42
Projects: 11


Game Engineer


« Reply #4 - Posted 2006-01-17 00:47:36 »

Yeah, that's what I've wanted to do.

Mac OS X has a .app bundler which let's you do that, but I don't have the option for PC. I'll look around.

See my work:
OTC Software
Offline ryanm

Senior Member


Projects: 1
Exp: 15 years


Used to be bleb


« Reply #5 - Posted 2006-01-17 03:09:39 »

Genjar allows you to do this.

... actually, I'm not sure if you can include only some files from a library jar in the output jar, but it certainly allows you to incorporate everything into one jar.
Offline Eli Delventhal

JGO Kernel


Medals: 42
Projects: 11


Game Engineer


« Reply #6 - Posted 2006-01-17 07:15:56 »

Ooh, Genjar looks great. Thanks a lot.

See my work:
OTC Software
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