Program: 4940
Project: 4940
Buggy source:
public boolean writeID3DataToDisk(String fileName){
  File f=null;
  RandomAccessFile file=null;
  try {
    f=new File(fileName);
    file=new RandomAccessFile(f,"String_Node_Str");
  }
 catch (  IOException e) {
    return false;
  }
  long length=0;
  try {
    length=file.length();
    if (length < 128)     return true;
    file.seek(length - 128);
  }
 catch (  IOException ee) {
    return true;
  }
  byte[] buffer=new byte[30];
  String tag="String_Node_Str";
  try {
    file.readFully(buffer,0,3);
    tag=new String(buffer,0,3);
  }
 catch (  Exception e) {
    e.printStackTrace();
    return true;
  }
  if (!tag.equals("String_Node_Str")) {
    try {
      byte[] tagBytes="String_Node_Str".getBytes();
      file.seek(length - 128);
      file.write(tagBytes,0,3);
    }
 catch (    Exception eee) {
      return false;
    }
  }
  debug("String_Node_Str");
  boolean b=toFile(title_,30,file,buffer);
  b=(b && toFile(artist_,30,file,buffer));
  b=(b && toFile(album_,30,file,buffer));
  b=(b && toFile(year_,4,file,buffer));
  b=(b && toFile(comment_,28,file,buffer));
  try {
    file.write(0);
    byte trackByte;
    if (track_ == null || track_.equals("String_Node_Str"))     trackByte=(byte)0;
 else     trackByte=Byte.parseByte(track_);
    file.write(trackByte);
    byte genreByte=getGenreByte();
    file.write(genreByte);
    file.close();
  }
 catch (  IOException e) {
    b=false;
  }
  return b;
}

Fixed version (ground truth):
public int writeID3DataToDisk(String fileName){
  File f=null;
  RandomAccessFile file=null;
  try {
    f=new File(fileName);
    file=new RandomAccessFile(f,"String_Node_Str");
  }
 catch (  IOException e) {
    return LimeXMLReplyCollection.FILE_DEFECTIVE;
  }
  long length=0;
  try {
    length=file.length();
    if (length < 128)     return LimeXMLReplyCollection.FILE_DEFECTIVE;
    file.seek(length - 128);
  }
 catch (  IOException ee) {
    return LimeXMLReplyCollection.RW_ERROR;
  }
  byte[] buffer=new byte[30];
  String tag="String_Node_Str";
  try {
    file.readFully(buffer,0,3);
    tag=new String(buffer,0,3);
  }
 catch (  Exception e) {
    return LimeXMLReplyCollection.RW_ERROR;
  }
  if (!tag.equals("String_Node_Str")) {
    try {
      byte[] tagBytes="String_Node_Str".getBytes();
      file.seek(length - 128);
      file.write(tagBytes,0,3);
    }
 catch (    Exception eee) {
      return LimeXMLReplyCollection.BAD_ID3;
    }
  }
  debug("String_Node_Str");
  boolean b;
  b=toFile(title_,30,file,buffer);
  if (!b)   return LimeXMLReplyCollection.FAILED_TITLE;
  b=toFile(artist_,30,file,buffer);
  if (!b)   return LimeXMLReplyCollection.FAILED_ARTIST;
  b=toFile(album_,30,file,buffer);
  if (!b)   return LimeXMLReplyCollection.FAILED_ALBUM;
  b=toFile(year_,4,file,buffer);
  if (!b)   return LimeXMLReplyCollection.FAILED_YEAR;
  b=toFile(comment_,28,file,buffer);
  if (!b)   return LimeXMLReplyCollection.FAILED_COMMENT;
  byte trackByte=(byte)-1;
  try {
    if (track_ == null || track_.equals("String_Node_Str"))     trackByte=(byte)0;
 else     trackByte=Byte.parseByte(track_);
  }
 catch (  NumberFormatException nfe) {
    return LimeXMLReplyCollection.FAILED_TRACK;
  }
  try {
    file.write(0);
    file.write(trackByte);
  }
 catch (  IOException e) {
    return LimeXMLReplyCollection.RW_ERROR;
  }
  try {
    byte genreByte=getGenreByte();
    file.write(genreByte);
  }
 catch (  Exception e) {
    return LimeXMLReplyCollection.FAILED_GENRE;
  }
  try {
    file.close();
  }
 catch (  IOException ioe) {
    return LimeXMLReplyCollection.RW_ERROR;
  }
  return LimeXMLReplyCollection.NORMAL;
}