Configure JOGL with maven

navy1978 Published at Dev

navy1978

I'm trying to configure JOGL with maven following the guide found here: http://jogamp.org/wiki/index.php/Maven

As far as I understand should be enough to include these dependencies:

<dependencies>
    <dependency>
      <groupId>org.jogamp.gluegen</groupId>
      <artifactId>gluegen-rt-main</artifactId>
      <version>2.3.1</version>
    </dependency>
    <dependency>
      <groupId>org.jogamp.jogl</groupId>
      <artifactId>jogl-all-main</artifactId>
      <version>2.3.1</version>
    </dependency>
  </dependencies>

Because they say:

"So, when you add a dependency on jogl-all-main in your own project, the native jar files of jogl-all are brought in as transitive dependencies and everything works as expected."

I have create a Maven project including those dependencies and now the project looks like this:

I wrote a simple HelloWorld class to test it:

import com.jogamp.opengl.GLCapabilities;

    public class HelloWorld {
        public static void main (String args[]) {
            try {


                System.loadLibrary("jogl");
                System.out.println("Hello World! (The native libraries are installed.)");
                GLCapabilities caps = new GLCapabilities(null);
                System.out.println("Hello JOGL! (The jar appears to be available.)");
            } catch (Exception e) {
                System.out.println(e);
            }
        }
    }

But running it I get this error:

Exception in thread "main" java.lang.UnsatisfiedLinkError: no jogl in java.library.path
    at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1886)
    at java.lang.Runtime.loadLibrary0(Runtime.java:849)
    at java.lang.System.loadLibrary(System.java:1088)
    at jogl.HelloWorld.main(HelloWorld.java:12)

So it seems the native dll (I'm on windows) are not found.

What is wrong here? Is the tutorial wrong, or did I miss something?

This is the pom.xml I'm using:

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>jogl</groupId>
    <artifactId>jogl</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <build>
        <sourceDirectory>src</sourceDirectory>
        <plugins>
            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.5</version>
                <configuration>
                    <source>1.7</source>
                    <target>1.7</target>
                </configuration>
            </plugin>
        </plugins>
    </build>
    <dependencies>
        <dependency>
            <groupId>org.jogamp.gluegen</groupId>
            <artifactId>gluegen-rt-main</artifactId>
            <version>2.3.1</version>
        </dependency>
        <dependency>
            <groupId>org.jogamp.jogl</groupId>
            <artifactId>jogl-all-main</artifactId>
            <version>2.3.1</version>
        </dependency>
    </dependencies>
</project>

navy1978

I found the problem: I was following the new procedure but using the old code to load the libraries. Indeed with the new libraries you don't need to use this line anymore:

 System.loadLibrary("jogl");

I have test it with this Line class and it works...

import javax.swing.JFrame;

import com.jogamp.opengl.GL2;
import com.jogamp.opengl.GLAutoDrawable;
import com.jogamp.opengl.GLCapabilities;
import com.jogamp.opengl.GLEventListener;
import com.jogamp.opengl.GLProfile;
import com.jogamp.opengl.awt.GLCanvas;

public class Line implements GLEventListener{
   @Override
   public void display(GLAutoDrawable drawable) {
      final com.jogamp.opengl.GL2 gl = drawable.getGL().getGL2();
      gl.glBegin (GL2.GL_LINES);//static field
      gl.glVertex3f(0.50f,-0.50f,0);
      gl.glVertex3f(-0.50f,0.50f,0);
      gl.glEnd();
   }
   @Override
   public void dispose(GLAutoDrawable arg0) {
      //method body
   }

   @Override
   public void init(GLAutoDrawable arg0) {
      // method body
   }
   @Override
   public void reshape(GLAutoDrawable arg0, int arg1, int arg2, int arg3, int arg4) {
      // method body
   }
   public static void main(String[] args) {
      //getting the capabilities object of GL2 profile
      final GLProfile profile = GLProfile.get(GLProfile.GL2);
      GLCapabilities capabilities = new GLCapabilities(profile);
      // The canvas 
      final GLCanvas glcanvas = new GLCanvas(capabilities);
      Line l = new Line();
      glcanvas.addGLEventListener(l);
      glcanvas.setSize(400, 400);
      //creating frame
      final JFrame frame = new JFrame ("straight Line");
      //adding canvas to frame
      frame.getContentPane().add(glcanvas);
      frame.setSize(frame.getContentPane().getPreferredSize());
      frame.setVisible(true);
   }//end of main
}//end of classimport javax.media.opengl.GL2;

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