Re: confusing error during realize of mediaplayer

Knute Johnson <>
Mon, 08 Jan 2007 15:14:14 -0800
SlowLearner wrote:

Ok I've removed the call to init components and spelt realize correctly
this time. The code now reads and still produces the same error as
before at runtime.

import java.awt.*;

 * @author user1
public class Form1 extends javax.swing.JFrame {

    /** Creates new form Form1 */

 File fp = new File("C:/TEST.MID");
    Player player;

    /** Creates new form form1 */
    public Form1() {
// initComponents();
        if (!fp.exists()) return;
        try {
        } catch (MalformedURLException ex) {
        } catch (NoPlayerException ex) {
        } catch (IOException ex) {

        player.addControllerListener( new ControllerListener() {
            public void controllerUpdate( ControllerEvent ce) {
              if ( ce instanceof RealizeCompleteEvent)
                  Component visual = player.getVisualComponent();
                  Component control =
                  if (visual != null)


I pasted everything in the original post from compilable code. The only
line I typed in on the original post is the realise(); line because I
originally had it in a button event handler. Hence the mistake. Sorry!
I didn't realise I'd made a mistake, sorry to of wasted your time
earlier. However this code should compile.

I'm using netbeans 5.5 ide.
JDK 1.5.0_09 same number jre
windows XP Home Service pack 2

I dont know have a website to post a link to my test3.mid file. However
the code gives the same error with every single midi file I try. So
just pick your favourite midi file and you'll replicate the error, no
problem! If you give it an mp3 file it runs ok, but not midi files.

I should point out perhaps incase there's yet another silly mistake
somewhere, that I picked the name slowlearner for a reason. I suffered
chemical damage to my brain in 1978 from a pesticide accident. It's
only about a 18 months since I've been able to even watch TV or read
let alone program. So I am litteraly a slow learner.

It compiles but doesn't run without a main(). I added a main and it
compiles and runs my mpg file. I don't have a mid file to test with. I
think you can post attachments on this list but I haven't tried it. Post
a small file that duplicates your problem and I'll look at it. If you
can't post attachments, email me a small file.


Knute Johnson
email s/nospam/knute/

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