Program: 60809
Project: 60809
Buggy source:
public int parser(String body,int mode){
  int re=0;
  Pattern p;
  Matcher m;
  if (body == null)   return 0;
  if (!body.contains("String_Node_Str")) {
    eMesg=body;
    return ERROR;
  }
  if (body.contains(OFFENSIVE_STRING)) {
    return OFFENSIVE;
  }
  if (body.contains(PINING_STRING)) {
    return PINING;
  }
  p=Pattern.compile("String_Node_Str");
  m=p.matcher(body);
  if (m.find()) {
    eMesg=m.group(1);
    return ERROR;
  }
  if ((mode & DETAIL) != 0) {
    p=Pattern.compile("String_Node_Str" + "String_Node_Str" + "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str");
    m=p.matcher(body);
    if (m.find()) {
      re|=DETAIL;
      thumb=Utils.unescapeXml(m.group(1));
      title=Utils.unescapeXml(m.group(2));
      title_jpn=Utils.unescapeXml(m.group(3));
      category=EhUtils.getCategory(m.group(4));
      uploader=m.group(5);
      posted=m.group(6);
      pages=Integer.parseInt(m.group(7));
      size=m.group(8);
      resized=m.group(9);
      parent=m.group(10);
      visible=m.group(11);
      language=m.group(12);
      people=Integer.parseInt(m.group(13).replace("String_Node_Str","String_Node_Str"));
      Pattern pattern=Pattern.compile("String_Node_Str");
      Matcher matcher=pattern.matcher(m.group(14));
      if (matcher.find())       rating=Float.parseFloat(matcher.group(1));
 else       rating=Float.NaN;
      firstPage=m.group(15);
    }
  }
  if ((mode & TAG) != 0) {
    tags=new LinkedHashMap<String,LinkedList<String>>();
    p=Pattern.compile("String_Node_Str");
    m=p.matcher(body);
    while (m.find()) {
      re|=TAG;
      String groupName=m.group(1);
      LinkedList<String> group=getTagGroup(m.group(0));
      if (group != null) {
        tags.put(groupName,group);
      }
    }
  }
  if ((mode & PREVIEW_INFO) != 0) {
    p=Pattern.compile("String_Node_Str");
    m=p.matcher(body);
    if (m.find()) {
      re|=PREVIEW_INFO;
      previewSum=Integer.valueOf(m.group(1).replace("String_Node_Str","String_Node_Str"));
    }
  }
  if ((mode & PREVIEW) != 0) {
    boolean isLargePreview=false;
    if (body.contains("String_Node_Str"))     isLargePreview=true;
    if (isLargePreview) {
      previewList=new LargePreviewList();
      p=Pattern.compile("String_Node_Str");
      m=p.matcher(body);
      while (m.find()) {
        re|=PREVIEW;
        ((LargePreviewList)previewList).addItem(m.group(2),m.group(1));
      }
    }
 else {
      previewList=new NormalPreviewList();
      p=Pattern.compile("String_Node_Str");
      m=p.matcher(body);
      while (m.find()) {
        re|=PREVIEW;
        ((NormalPreviewList)previewList).addItem(m.group(3),m.group(4),"String_Node_Str",m.group(1),m.group(2),m.group(5));
      }
    }
    if (previewList != null)     previewPerPage=previewList.size();
  }
  if ((mode & COMMENT) != 0) {
    p=Pattern.compile("String_Node_Str");
    m=p.matcher(body);
    comments=new LinkedList<Comment>();
    while (m.find()) {
      re|=COMMENT;
      comments.add(new Comment(m.group(1),m.group(2),m.group(3)));
    }
    Collections.sort(comments,cs);
  }
  return re;
}

Fixed version (ground truth):
public int parser(String body,int mode){
  int re=0;
  Pattern p;
  Matcher m;
  if (body == null)   return 0;
  if (!body.contains("String_Node_Str")) {
    eMesg=body;
    return ERROR;
  }
  if (body.contains(OFFENSIVE_STRING)) {
    return OFFENSIVE;
  }
  if (body.contains(PINING_STRING)) {
    return PINING;
  }
  p=Pattern.compile("String_Node_Str");
  m=p.matcher(body);
  if (m.find()) {
    eMesg=m.group(1);
    return ERROR;
  }
  if ((mode & DETAIL) != 0) {
    p=Pattern.compile("String_Node_Str" + "String_Node_Str" + "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str");
    m=p.matcher(body);
    if (m.find()) {
      re|=DETAIL;
      thumb=Utils.unescapeXml(m.group(1));
      title=Utils.unescapeXml(m.group(2));
      title_jpn=Utils.unescapeXml(m.group(3));
      category=EhUtils.getCategory(m.group(4));
      uploader=m.group(5);
      posted=m.group(6);
      parent=m.group(7);
      visible=m.group(8);
      language=Utils.unescapeXml(m.group(9)).trim();
      size=Utils.unescapeXml(m.group(10)).trim();
      resized=m.group(11);
      pages=Integer.parseInt(m.group(12).replace("String_Node_Str","String_Node_Str"));
      people=Integer.parseInt(m.group(14).replace("String_Node_Str","String_Node_Str"));
      Pattern pattern=Pattern.compile("String_Node_Str");
      Matcher matcher=pattern.matcher(m.group(15));
      if (matcher.find())       rating=Float.parseFloat(matcher.group(1));
 else       rating=Float.NaN;
      firstPage=m.group(16);
    }
  }
  if ((mode & TAG) != 0) {
    tags=new LinkedHashMap<>();
    p=Pattern.compile("String_Node_Str");
    m=p.matcher(body);
    while (m.find()) {
      re|=TAG;
      String groupName=m.group(1);
      LinkedList<String> group=getTagGroup(m.group(0));
      if (group != null) {
        tags.put(groupName,group);
      }
    }
  }
  if ((mode & PREVIEW_INFO) != 0) {
    p=Pattern.compile("String_Node_Str");
    m=p.matcher(body);
    if (m.find()) {
      re|=PREVIEW_INFO;
      previewSum=Integer.valueOf(m.group(1).replace("String_Node_Str","String_Node_Str"));
    }
  }
  if ((mode & PREVIEW) != 0) {
    boolean isLargePreview=false;
    if (body.contains("String_Node_Str"))     isLargePreview=true;
    if (isLargePreview) {
      previewList=new LargePreviewList();
      p=Pattern.compile("String_Node_Str");
      m=p.matcher(body);
      while (m.find()) {
        re|=PREVIEW;
        ((LargePreviewList)previewList).addItem(m.group(2),m.group(1));
      }
    }
 else {
      previewList=new NormalPreviewList();
      p=Pattern.compile("String_Node_Str");
      m=p.matcher(body);
      while (m.find()) {
        re|=PREVIEW;
        ((NormalPreviewList)previewList).addItem(m.group(3),m.group(4),"String_Node_Str",m.group(1),m.group(2),m.group(5));
      }
    }
    if (previewList != null)     previewPerPage=previewList.size();
  }
  if ((mode & COMMENT) != 0) {
    p=Pattern.compile("String_Node_Str");
    m=p.matcher(body);
    comments=new LinkedList<Comment>();
    while (m.find()) {
      re|=COMMENT;
      comments.add(new Comment(m.group(1),m.group(2),m.group(3)));
    }
    Collections.sort(comments,cs);
  }
  return re;
}