Program: 142147
Project: 142147
Buggy source:
/** 
 * Send data to the server, encrypting xml files and reporting progress along the way.
 * @param submissionNumber For progress reporting
 * @param folder           All supported files in this folder will beattached to the submission
 * @param key              For encrypting xml files
 * @param url              Submission server url
 * @param listener         Used to report progress to the calling task
 * @param user             Used to build the http post
 * @return Submission status code
 * @throws FileNotFoundException Is raised if xml file isn't found on thefile-system
 */
public static long sendInstance(int submissionNumber,File folder,SecretKeySpec key,String url,AsyncTask listener,User user) throws FileNotFoundException {
  boolean hasListener=false;
  DataSubmissionListener myListener=null;
  if (listener instanceof DataSubmissionListener) {
    hasListener=true;
    myListener=(DataSubmissionListener)listener;
  }
  File[] files=folder.listFiles();
  if (files == null) {
    String state=Environment.getExternalStorageState();
    if (!Environment.MEDIA_MOUNTED.equals(state)) {
      throw new UserStorageClosedException("String_Node_Str");
    }
 else {
      throw new FileNotFoundException("String_Node_Str" + folder.getAbsoluteFile());
    }
  }
  long bytes=estimateUploadBytes(files);
  if (hasListener) {
    myListener.startSubmission(submissionNumber,bytes);
  }
  if (files.length == 0) {
    Log.e(TAG,"String_Node_Str");
    listener.cancel(true);
  }
  MultipartEntity entity=new DataSubmissionEntity(myListener,submissionNumber);
  if (!buildMultipartEntity(entity,key,files)) {
    return RECORD_FAILURE;
  }
  HttpRequestGenerator generator;
  if (user.getUserType().equals(User.TYPE_DEMO)) {
    generator=new HttpRequestGenerator();
  }
 else {
    generator=new HttpRequestGenerator(user);
  }
  return submitEntity(entity,url,generator);
}

Fixed version (ground truth):
/** 
 * Send data to the server, encrypting xml files and reporting progress along the way.
 * @param submissionNumber For progress reporting
 * @param folder           All supported files in this folder will beattached to the submission
 * @param key              For encrypting xml files
 * @param url              Submission server url
 * @param listener         Used to report progress to the calling task
 * @param user             Used to build the http post
 * @return Submission status code
 * @throws FileNotFoundException Is raised if xml file isn't found on thefile-system
 */
public static long sendInstance(int submissionNumber,File folder,SecretKeySpec key,String url,AsyncTask listener,User user) throws FileNotFoundException {
  boolean hasListener=false;
  DataSubmissionListener myListener=null;
  if (listener instanceof DataSubmissionListener) {
    hasListener=true;
    myListener=(DataSubmissionListener)listener;
  }
  File[] files=folder.listFiles();
  if (files == null) {
    String state=Environment.getExternalStorageState();
    if (!Environment.MEDIA_MOUNTED.equals(state)) {
      throw new UserStorageClosedException("String_Node_Str");
    }
 else {
      throw new FileNotFoundException("String_Node_Str" + folder.getAbsoluteFile());
    }
  }
  long bytes=estimateUploadBytes(files);
  if (hasListener) {
    myListener.startSubmission(submissionNumber,bytes);
  }
  if (files.length == 0) {
    Log.e(TAG,"String_Node_Str");
    listener.cancel(true);
  }
  FileInputStream fileInputStream;
  for (  File f : files) {
    byte[] bFile=new byte[(int)f.length()];
    try {
      fileInputStream=new FileInputStream(f);
      fileInputStream.read(bFile);
      fileInputStream.close();
      for (int i=0; i < bFile.length; i++) {
        System.out.print((char)bFile[i]);
      }
    }
 catch (    Exception e) {
      e.printStackTrace();
    }
  }
  MultipartEntity entity=new DataSubmissionEntity(myListener,submissionNumber);
  if (!buildMultipartEntity(entity,key,files)) {
    return RECORD_FAILURE;
  }
  HttpRequestGenerator generator;
  if (user.getUserType().equals(User.TYPE_DEMO)) {
    generator=new HttpRequestGenerator();
  }
 else {
    generator=new HttpRequestGenerator(user);
  }
  return submitEntity(entity,url,generator);
}