UnsatisifedLinkError exception. why am I getting this?

[tyler jones]

My applet is running in the background of a page. Then all of a sudden, this message will pop up ...
java/lang/UnsatisifedLinkError Exception was not handled.
I know it's an exception that I need to catch, but I can't figure out where it's occuring in my code or even why it's occuring. Does anyone see a reason that this would be happening? Thanks.

import java.io.*;
import java.util.*;
import java.awt.*;
import java.net.*;
import java.applet.*;
import java.text.*;
import java.awt.event.*;
import netscape.javascript.JSObject;
public class AlarmContainer extends java.applet.Applet {
    
    private int index;
    int background[] = new int[3];
    private String tmpStr = "";
    private java.util.Date d = new java.util.Date();
    private DateFormat df = new SimpleDateFormat("MM/dd/yy H:mm");
    private GregorianCalendar today = new GregorianCalendar();
    private int day = today.get( today.DAY_OF_MONTH );
    private int month = today.get( today.MONTH )+1;
    private int year = today.get( today.YEAR );
    private String sSoundFile;
    private String messageID;
    private int IDCount;
    Thread t;
    JSObject win;
    public Long l;
            
    public void init() {
    win = JSObject.getWindow(this);
setSize(1, 1);
sSoundFile = getParameter("snd");

StringTokenizer bgColor = new StringTokenizer(getParameter("bgColor"),",");
StringTokenizer Times = new StringTokenizer(getParameter("Times"),"|");
StringTokenizer IDS = new StringTokenizer(getParameter("IDS"),"|");
StringTokenizer alarmTimes = new StringTokenizer(getParameter("alertTimes"),"|");

IDCount = IDS.countTokens();

//populate array of alarm clocks with time values passed in
if ( Times.countTokens() > 0 )
{
AlarmClock c[] = new AlarmClock[Times.countTokens()];
for ( int i = 0; i < c.length; i++ )
{
tmpStr = Times.nextToken();
if ( tmpStr.trim().length() > 0 )
{
try {
d = df.parse( month + "/" + day + "/" + year + " " + tmpStr );
messageID = (IDCount >= i+1) ? IDS.nextToken() : "0";
c[i] = new AlarmClock( d, alarmTimes.nextToken(), messageID, sSoundFile );
}
catch (ParseException pe) {}
}
}

}
//create array of rgb values for background color
for ( int i = 0; i < 3; i++ )
{
if ( bgColor.hasMoreTokens() ) 
background[i] = Integer.parseInt(bgColor.nextToken());
else
background[i] = 0;
}

setBackground(new Color(background[0],background[1],background[2]));
    }
    public void start() {
    }
    public void stop() {
        if ( t != null )
        {
            t.destroy();
            t = null;
        }
    }
    
    
  public void paint(Graphics g) {
    }
       
private class AlarmClock implements Runnable
{
private String sounds;
    private AudioClip audio;
private java.util.Date activityDate = new java.util.Date();
private int MessageID;
    
public AlarmClock( java.util.Date timeToSet, String alertTimeMessage, String ID, String soundFile)
{
MessageID = Integer.parseInt(ID);
activityDate = timeToSet;
sounds = soundFile;
t = new Thread(this);
t.setDaemon(true);
t.start();
}

        public void run()
{
boolean tryHit = false;
while ( !tryHit )
{
try 
{
if ( new java.util.Date().getTime() >= activityDate.getTime() )
{
tryHit = true;
ringAlarm( Integer.toString(MessageID) );
}
Thread.sleep(1000);
}
catch (Exception e ) 
{ 
tryHit = true;
}
}
        }
 
    public void ringAlarm( String mID )
{

String [] stringArgs = new String[1];
stringArgs[0] = mID;
win.call("PopUpAlarm", stringArgs);
try {
    if (audio != null) 
{
audio.stop();
audio = null;
    }
    String url = sounds;
    if (url.length() > 0) 
{
audio = getAudioClip(new URL(getDocumentBase(), url));
audio.play();
    }
} 
catch(Exception e) {}
    }
}
//end of inner class
}
//end of outer AlarmContainer class

[Rakesh Ray]

Look at java console and it will tell you from where this is coming.
My best guess would be, if you have compiled your applet code with java2( becuase you are using some method exclusively available in 1.2) and your browser's jvm is 1.? then you should get this problem.

[tyler jones]

I've written my applet to be 1.1 compliant though so that I wouldn't have issues with anyone who didn't have anything higher installed. I don't know what part of my code isn't 1.1 compliant. Do you see anywhere where it isn't? Thanks.

[Dirk Schreckmann]

Even if you aren't including any post-1.1 classes, you may still need to compile with the target switch like this:
javac -target 1.1 Whatever.java
This is probably only necessary if you're using Sun's Java SDK 1.4 or newer (I'm not familiar with any third party Java compilers).
For more information on javac, take a look at The javac Documentation.

[Rakesh Ray]

Try to use printStackTrace() method in exception handling which will tell you about the origin of the problem.