Here is my code

     if (event.target.content is Bitmap)
{

    infotext.text = "got something";
    var image:Bitmap = Bitmap(event.target.content);
    var bitmapData:BitmapData = image.bitmapData;
    this.addChild(image);
    var j:JPGEncoder = new JPGEncoder(100);
    var bytes:ByteArray = new ByteArray();
    bytes=j.encode(bitmapData);
}
else
{
    throw new Error("What the heck bob?");
}

When I run a debug session everything works fine till it reaches to the line

      bytes=j.encode(bitmapData);

after that nothing happens and my program just goes into limbo Please help