Execute the following program:
// java.*
import java.awt.Frame;
import java.awt.Window;
import java.awt.image.ImageObserver;

/**
 * Class declaration
 *
 *
 * @author
 * @version %I%, %G%
 */
public class Test extends Window implements ImageObserver
{
  private static final int HEIGHT = 251;
  private static final int WIDTH = 382;

  /**
   * Constructor
   * @param parent the parent frame
   */
  public Test(Frame parent)
  {
    super(parent);
    setSize(WIDTH, HEIGHT); // wizard size
  }

  public static void main(String[] argv) throws Exception
  {
      Frame f = new Frame();
      Test t = new Test(f);
      t.setVisible(true);
  }

}

The following message is shown on the console:
Warning: Cannot convert string
"-monotype-arial-regular-r-normal--*-140-*-*-p-*-iso8859-1" to type FontStruct
###@###.### 10/19/04 20:09 GMT