Error opening file.

I am getting the following stack trace:

java.io.IOException: Read error
    at java.io.FileInputStream.readBytes(Native Method)
    at java.io.FileInputStream.read(FileInputStream.java:177)
    at net.bcr666.hexwriter.Loader.run(Loader.java:35)

This is the code from the class
import java.util.*;

import javax.swing.event.*;
import java.io.IOException;
import javax.swing.JOptionPane;
import java.io.InputStream;
import javax.swing.SwingUtilities;

public class Loader extends Thread {
  transient Vector changeListeners = null;
  InputStream inputStream = null;
  HexWriter parent = null;
  Vector data = new Vector();

  public Loader(InputStream inputStream, HexWriter parent) {
    this.inputStream = inputStream;
    this.parent = parent;
  }

  public byte[] getData() {
    if (data.size() == 0) {
      return null;
    }
    return (byte[])data.get(0);
  }

  public void run() {
    byte[] input = new byte[16];
    int status = 0;

    do {
        try {
            status = inputStream.read(input);
        } catch (IOException ex) {
          JOptionPane.showMessageDialog(parent, "Error reading
file.");
          ex.printStackTrace();
          fireStateChanged(new ChangeEvent(this));
          return;
        } finally {
          try { inputStream.close(); } catch (IOException ex) {}
        }
        if (status > 0) {
          data.add(input);
          fireStateChanged(new ChangeEvent(this));
        }
    } while (status > -1);

    try {
      fireStateChanged(new ChangeEvent(this));
      inputStream.close();
    } catch (Exception ex) {}
  }

  public synchronized void addChangeListener(ChangeListener listener)
{
    if (changeListeners == null) {
      changeListeners = new Vector();
    }
    if (!changeListeners.contains(listener)) {
      changeListeners.add(listener);
    }
  }

  public synchronized void removeChangeListener(ChangeListener
listener) {
    if (changeListeners == null) {
      return;
    }
    if (changeListeners.contains(listener)) {
      changeListeners.remove(listener);
    }
    if (changeListeners.size() == 0) {
      changeListeners = null;
    }
  }

  protected void fireStateChanged(final ChangeEvent e) {
    if (changeListeners != null) {
      final Vector listeners = changeListeners;
      int count = listeners.size();
      for (int i = 0; i < count; i++) {
        final int j = i;
        SwingUtilities.invokeLater(new Runnable() {
          public void run() {
            ( (ChangeListener)
listeners.elementAt(j)).stateChanged(e);
          }
        });
      }
    }
  }
}

The InputStream is passed in from another class and is guaranteed to
be open. I get the same error no matter what file I try to open. Am
I doing something wrong?