A quite complex problem

Question

hello,
I'm trying to write a program that should be composed of two kind of parts: a kernel and some separate packages the cooperates with the kernel. These packages should contain text, images, sound and classes.. because every package behaviour is different I chose to use some classes for every package and I chose to load them at runtime. The problem is that this package should be contained in only a single jar file (also encrypted with jce) and I don't know if it's possible to load a stream of bytes and use it directly to render an image (without specifying a path, also because the image doesn't have to be extracted from package).. can anyone tell me if it's possible or not?
another unrelated question, to load some files (always for the same program) I used a ProgressMonitorInputStream that throws InterruptedIOException, now I wanted to stop the thread that loads the file when cancel button is pressed so I tried to find a way to stop a thread, i tried thread.interrupt() but it doens't work, what should I use assuming that I don't want to use deprecated methods?
Thanks a lot for your help,
best regards,
Jacopo

Answer 1

another unrelated question, to load some files
(always for the same program) I used a
ProgressMonitorInputStream that throws
InterruptedIOException, now I wanted to stop the
thread that loads the file when cancel button is
pressed so I tried to find a way to stop a thread, i
tried thread.interrupt() but it doens't work, what
should I use assuming that I don't want to use
deprecated methods?
public class InterruptibleFileReader implements Runnable {
  private boolean pleaseStop = false;
  // constructors and other instance variables if needed
  public synchronized void stop() {
    pleaseStop = true;
  public synchronized boolean isStopping() {
    return pleaseStop;
  public void run() {
    String line = null;
    while (!isStopping() && ((line = reader.readLine()) != null)) {
      // process line of file
}Run this like this:InterruptibleFileReader ifr = new InterruptibleFileReader(...);
new Thread(ifr).start();Then you can stop the thread like this:ifr.stop();