The images probably aren't being found. Usually that's caused by the images either being uploaded to the wrong place or the HTML pointing to the wrong place. Depending on the application that saved it, it may be pointing to a local file or it may have a relative path and you just don't have the images in the same place. Check the HTML and either upload the images or change the URL they point to so that it points to where you do have them.
What does this have to do with
Java?