import net.java.games.jogl.*;
import java.awt.*;
import javax.swing.*;
 
public class Test
{
    public static void main(String[] args) {
   JFrame f = new JFrame();
   f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   JPanel c = new JPanel();
   c.setPreferredSize(new Dimension(400,400));
   f.getContentPane().add(c);
   c.setLayout(new GridBagLayout());
   GridBagConstraints gbc = new GridBagConstraints();
   gbc.gridwidth = GridBagConstraints.REMAINDER;
   gbc.gridheight = 1;
   gbc.weightx = gbc.weighty = 1;
   gbc.fill = GridBagConstraints.BOTH;
 
   JPanel p = new JPanel();
   p.setBackground(Color.RED);
   p.add(new JLabel("don't squeeze me!"));
   c.add(p,gbc);
   /*
   JPanel p2 = new JPanel();
   p2.setBackground(Color.BLUE);
   p2.add(new JLabel("me neither!"));
   c.add(p2,gbc);
   */
   GLCanvas glc = GLDrawableFactory.getFactory().createGLCanvas(
  new GLCapabilities());
   glc.addGLEventListener(
  new GLEventListener() {
      public void init(GLDrawable drawable) {}
      public void display(GLDrawable drawable) {
     GL gl = drawable.getGL();
     gl.glClear(GL.GL_COLOR_BUFFER_BIT);
      }
      public void displayChanged(GLDrawable d,boolean b,boolean c){}
      public void reshape(GLDrawable d,int a,int b,int c,int e){}
  }
   );
   c.add(glc,gbc);
   // NOTE: the code below solves the problem
   // 
   //   JPanel cont = new JPanel();
   //   cont.setLayout(new BorderLayout());
   //   cont.add(glc, BorderLayout.CENTER);
   //   cont.setPreferredSize(new Dimension(0, 0));
   //   c.add(cont, gbc);
 
   f.pack();
   f.setVisible(true);
    }
}