Program: 168221
Project: 168221
Buggy source:
private void getBooksList(String author,String aurl,Document doc,String apath){
  System.out.println("String_Node_Str");
  Elements subLists=doc.select("String_Node_Str");
  Elements subHeaders=doc.select("String_Node_Str");
  int count=0;
  for (  Element list : subLists) {
    try {
      Elements booksList=list.getElementsByTag("String_Node_Str");
      File authorDir=new File(apath + File.separator + subHeaders.get(count).text());
      if (!authorDir.exists()) {
        authorDir.mkdirs();
      }
      String apath1=authorDir.toString();
      System.out.println(apath1);
      count++;
      String bookname="String_Node_Str";
      for (      Element bookItem : booksList) {
        String bookText=bookItem.getElementsByTag("String_Node_Str").attr("String_Node_Str");
        bookname=bookItem.text();
        System.out.println(bookText);
        getContent(bookText,bookname,apath1);
      }
    }
 catch (    Exception e) {
      System.out.println("String_Node_Str" + author);
      appendLog("String_Node_Str" + author);
    }
  }
}

Fixed version (ground truth):
private void getBooksList(String author,String aurl,Document doc,String apath,String mainAuthor){
  Elements subLists=doc.select("String_Node_Str");
  Elements subHeaders=doc.select("String_Node_Str");
  int i=0, size1=subLists.size(), size2=subHeaders.size(), j=0;
  String bookText="String_Node_Str";
  String bookname="String_Node_Str";
  Element head=null;
  while (i < size1 || j < size2) {
    try {
      if (j < size2) {
        head=subHeaders.get(j);
        Elements bookLink=head.getElementsByTag("String_Node_Str");
        if (bookLink != null && bookLink.size() > 0) {
          bookText=bookLink.get(0).attr("String_Node_Str");
          bookname=bookLink.get(0).text();
          if (skipBooks.contains(bookname))           continue;
          if (authorNames.contains(bookname) || (bookname.toLowerCase()).equals(author.toLowerCase()))           continue;
          File authorDir=new File(apath + File.separator + bookname);
          if (!authorDir.exists()) {
            authorDir.mkdirs();
          }
          String apath1=authorDir.toString();
          getBooks(bookname,bookText,apath1,mainAuthor);
          j++;
          continue;
        }
      }
      if (i < size1) {
        Element list=subLists.get(i);
        Elements booksList=list.getElementsByTag("String_Node_Str");
        String authorNewDir=apath + File.separator;
        if (j < size2)         authorNewDir+=head.text();
 else         authorNewDir+="String_Node_Str";
        File authorDir=new File(authorNewDir);
        if (!authorDir.exists()) {
          authorDir.mkdirs();
        }
        String apath1=authorDir.toString();
        int count1=0;
        if (booksList != null) {
          for (          Element bookItem : booksList) {
            bookText=bookItem.getElementsByTag("String_Node_Str").attr("String_Node_Str");
            if (bookText.contains("String_Node_Str"))             continue;
            bookname=bookItem.text();
            if (skipBooks.contains(bookname))             continue;
            if (authorNames.contains(bookname) || (bookname.toLowerCase()).equals(author.toLowerCase()))             continue;
            getBooks(bookname,bookText,apath1,mainAuthor);
            count1++;
          }
        }
        if (count1 == 0) {
          if (doc.select("String_Node_Str") != null && doc.select("String_Node_Str").size() > 0)           bookname=doc.select("String_Node_Str").first().text();
 else           if (doc.select("String_Node_Str") != null && doc.select("String_Node_Str").size() > 0)           bookname=doc.select("String_Node_Str").first().text();
 else           bookname=author;
          getContent(aurl,bookname,apath1);
        }
        i++;
      }
      j++;
    }
 catch (    Exception e) {
      appendLog("String_Node_Str" + author);
    }
  }
}