Program: 109725
Project: 109725
Buggy source:
private String embedFile(String filename){
  if (filename == null || filename.equals("String_Node_Str"))   return null;
  if (filename.startsWith(VpnProfile.INLINE_TAG))   return filename;
  File sdcard=Environment.getExternalStorageDirectory();
  File root=new File("String_Node_Str");
  Vector<File> dirlist=new Vector<File>();
  for (int i=mPathsegments.size() - 1; i >= 0; i--) {
    String path="String_Node_Str";
    for (int j=0; j <= i; j++) {
      path+="String_Node_Str" + mPathsegments.get(j);
    }
    dirlist.add(new File(path));
  }
  dirlist.add(sdcard);
  dirlist.add(root);
  String[] fileparts=filename.split("String_Node_Str");
  for (  File rootdir : dirlist) {
    String suffix="String_Node_Str";
    for (int i=fileparts.length - 1; i >= 0; i--) {
      if (i == fileparts.length - 1)       suffix=fileparts[i];
 else       suffix=fileparts[i] + "String_Node_Str" + suffix;
      File possibleFile=new File(rootdir,suffix);
      if (!possibleFile.canRead())       continue;
      String filedata="String_Node_Str";
      byte[] buf=new byte[2048];
      log(R.string.trying_to_read,possibleFile.getAbsolutePath());
      try {
        FileInputStream fis=new FileInputStream(possibleFile);
        int len=fis.read(buf);
        while (len > 0) {
          filedata+=new String(buf,0,len);
          len=fis.read(buf);
        }
        fis.close();
        return filedata;
      }
 catch (      FileNotFoundException e) {
        log(e.getLocalizedMessage());
      }
catch (      IOException e) {
        log(e.getLocalizedMessage());
      }
    }
  }
  log(R.string.import_could_not_open,filename);
  return null;
}

Fixed version (ground truth):
private String embedFile(String filename){
  if (filename == null || filename.equals("String_Node_Str"))   return null;
  if (filename.startsWith(VpnProfile.INLINE_TAG))   return filename;
  File sdcard=Environment.getExternalStorageDirectory();
  File root=new File("String_Node_Str");
  Vector<File> dirlist=new Vector<File>();
  for (int i=mPathsegments.size() - 1; i >= 0; i--) {
    String path="String_Node_Str";
    for (int j=0; j <= i; j++) {
      path+="String_Node_Str" + mPathsegments.get(j);
    }
    dirlist.add(new File(path));
  }
  dirlist.add(sdcard);
  dirlist.add(root);
  String[] fileparts=filename.split("String_Node_Str");
  for (  File rootdir : dirlist) {
    String suffix="String_Node_Str";
    for (int i=fileparts.length - 1; i >= 0; i--) {
      if (i == fileparts.length - 1)       suffix=fileparts[i];
 else       suffix=fileparts[i] + "String_Node_Str" + suffix;
      File possibleFile=new File(rootdir,suffix);
      if (!possibleFile.canRead())       continue;
      String filedata="String_Node_Str";
      byte[] buf=new byte[2048];
      log(R.string.trying_to_read,possibleFile.getAbsolutePath());
      try {
        FileInputStream fis=new FileInputStream(possibleFile);
        int len=fis.read(buf);
        while (len > 0) {
          filedata+=new String(buf,0,len);
          len=fis.read(buf);
        }
        fis.close();
        return VpnProfile.INLINE_TAG + filedata;
      }
 catch (      FileNotFoundException e) {
        log(e.getLocalizedMessage());
      }
catch (      IOException e) {
        log(e.getLocalizedMessage());
      }
    }
  }
  log(R.string.import_could_not_open,filename);
  return null;
}