JogAmp JAR File Handling

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Contents

Native JAR Files

See Native JAR Files explained.

Native JAR files are loaded automatically.

Applet / JNLP Usage

A short copy is included in the static page JOGL Deployment using NApplet.

Custom Bundling

Multi-Jar

Multi-Jar

This configuration is discouraged, since such deployment removes our artifacts as stored in the jar's manifest file, which helps identifying the jogamp modules for bug reports etc.

However, since we don't want to patronize our user base, we support this feature with our native JAR lib loading mechanism.

It is possible to merge all modules together, i.e.

 multi.jar:
   gluegen-rt.jar
   jogl-all.jar
   user-app.jar
 multi-natives-<os.and.arch>.jar:
   gluegen-rt-natives-<os.and.arch>.jar
   jogl-all-natives-<os.and.arch>.jar

A combination with Fat-Jar is possible.

Fat-Jar

Discouraged Fat-Jar

This configuration is discouraged, since such deployment removes our artifacts as stored in the jar's manifest file, which helps identifying the jogamp modules for bug reports etc.

Furthermore, adding all native library files for all supported platforms will add-up to +3M of _compressed_ jar data!

However, since we don't want to patronize our user base, we support this feature with our native JAR lib loading mechanism.

Usage

If the modules's jar file contains the folder 'natives/<os.and.arch>/' we assume a fat-jar and attempt to load all native libraries from the same.

If we don't have a fat-jar or if fat-jar loading doesn't result in extracted native libraries, we assume a regular slim jar file.

Layout:

 /com/lala1/Lala1.class
 /com/lala2/Lala2.class
 /natives/<os.and.arch>/libLala1.so
 /natives/<os.and.arch>/libLala2.so

A combination w/ Multi-Jar is of course possible.

One-Jar

One-Jar

One-Jar is incomplete, i.e. it does not provide a URL handler for it's jar-in-jar resources - hence we would need to implement this functionality manually.

See One-Jar lacks of URLHandler ...

For now, one can use Eclipse working jar-in-jar feature (see below). Since Eclipse is under an open source license, one should be able to locate the source code and include in a standalone toolkit, if so required.

JarMatey

JarMatey is an open source tool for creating standalone self-executing JARs, similar to One-Jar but with a graphical user interface and no support for build tools (Ant, Maven). You can find a detailed tutorial about it here.

Eclipse

Native JAR files and their respective base JAR files can be bundled in custom ways, e.g. eclipse Jar-In-Jar etc.

   Manual tested w/ Eclipse:
   
   Preparations:
   ===============
   
   1) Set up a vanilla eclipse (3.7.0) workspace
   
   2) Add the JOGL User Library:
     - Window.Preference
      - Java.Build_Path.User_Libraries:
        + JOGL
           + gluegen-rt.jar
           + jogl-all.jar
           + gluegen-rt-natives-linux-amd64.jar
           + jogl-all-natives-linux-amd64.jar
   
           You may add all other native JARs here.
           Note that these are not required in the CLASSPATH by JOGL,
           however, they are required by Eclipse to export your project as a Runnable JAR File.
   3) New test project
     -  Right-click your project in the Package Explorer and click "Properties".
          - Select "Java Build Path" and click the "Libraries" tab.
             + JOGL
     - Add some simple code ..
     - Run as Java Application ..
   
   Test-1:
   =========
   
   Export
     - Right-click your project in the Package Explorer and click "Export"
       - Select Java.Runnable_JAR_file
         + Launch configuration
         + some destination path
         + Library handling:
           Copy required libraries into a sub-folder next to the generated JAR
   
   Result: Works!
   
   ./lala01.jar
   ./lala01_lib/jogl-all.jar
   ./lala01_lib/jogl-all-natives-linux-amd64.jar
   ./lala01_lib/... etc ..
   
   Test-2:
   =========
   
   Export
     - Right-click your project in the Package Explorer and click "Export"
       - Select Java.Runnable_JAR_file
         + Launch configuration
         + some destination path
         + Library handling:
           Package required libraries into generated JAR
   Result: Works!
   
   ./lala02.jar:
     Manifest-Version: 1.0
     Rsrc-Class-Path: ./ gluegen-rt-natives-linux-amd64.jar gluegen-rt.jar
                         jogl-all-natives-linux-amd64.jar jogl-all.jar
     Class-Path: .
     Rsrc-Main-Class: Test01
     Main-Class: org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader
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