public ActionEvent(Object source,
    int id,
    String command) 
{
        this(source, id, command, 0);
}

 public ActionEvent(Object source,
    int id,
    String command,
    int modifiers) 
{
        this(source, id, command, 0l, modifiers);
}

 public ActionEvent(Object source,
    int id,
    String command,
    long when,
    int modifiers) 
{
        super(source, id);
        this.command = command;
        this.when = when;
        this.modifiers = modifiers;
}

 public String getActionCommand() 
{
        return command;
}

 public int getModifiers() 
{
        return modifiers;
}

 public long getWhen() 
{
        return when;
}

 public String paramString() 
{
        /* The format is based on 1.5 release behavior 
         * which can be revealed by the following code:
         * 
         * ActionEvent e = new ActionEvent(new Component(){},
         *       ActionEvent.ACTION_PERFORMED, "Command",
         *       ActionEvent.SHIFT_MASK|ActionEvent.CTRL_MASK|
         *       ActionEvent.META_MASK|ActionEvent.ALT_MASK);
         * System.out.println(e);
         */
        String idString = (id == ACTION_PERFORMED) ? 
                          "ACTION_PERFORMED" : "unknown type"; //$NON-NLS-1$ //$NON-NLS-2$
        String modifiersString = ""; //$NON-NLS-1$
        if ((modifiers & SHIFT_MASK)  > 0) {
            modifiersString += "Shift"; //$NON-NLS-1$
        }
        if ((modifiers & CTRL_MASK)  > 0) {
            modifiersString += modifiersString.length() == 0 ? "Ctrl" : "+Ctrl"; //$NON-NLS-1$ //$NON-NLS-2$
        }
        if ((modifiers & META_MASK)  > 0) {
            modifiersString += modifiersString.length() == 0 ? "Meta" : "+Meta"; //$NON-NLS-1$ //$NON-NLS-2$
        }
        if ((modifiers & ALT_MASK)  > 0) {
            modifiersString += modifiersString.length() == 0 ? "Alt" : "+Alt"; //$NON-NLS-1$ //$NON-NLS-2$
        }
        return (idString + ",cmd=" + command + ",when=" + when +  //$NON-NLS-1$ //$NON-NLS-2$
                ",modifiers=" + modifiersString); //$NON-NLS-1$
}