Program: 132378
Project: 132378
Buggy source:
public static void initiateConversion(int dbVer,final BabuDBConfig cfg) throws BabuDBException {
  if (!DBWriter.checkVersionSupport(dbVer))   throw new BabuDBException(ErrorCode.IO_ERROR,"String_Node_Str" + dbVer + "String_Node_Str"+ BabuDB.BABUDB_DB_FORMAT_VERSION+ "String_Node_Str");
 else   Logging.logMessage(Logging.LEVEL_INFO,Category.db,(Object)null,"String_Node_Str");
  final File dbDir=new File(cfg.getBaseDir());
  final File dbLogDir=new File(cfg.getDbLogDir());
  final File targetDir=new File(dbDir,"String_Node_Str");
  final File cfgFile=new File(dbDir,cfg.getDbCfgFile());
  final File backupDir=new File(cfg.getBaseDir(),"String_Node_Str" + dbVer);
  final File backupDBDir=new File(backupDir,"String_Node_Str");
  final File backupLogDir=new File(backupDir,"String_Node_Str");
  if (targetDir.exists())   FSUtils.delTree(targetDir);
  try {
    DBWriter.writeDB(cfg,dbVer,targetDir.getAbsolutePath());
    File[] dbFilesToMove=dbDir.listFiles(new FileFilter(){
      public boolean accept(      File pathname){
        return !(pathname.equals(targetDir) || pathname.equals(cfgFile) || pathname.equals(backupDir));
      }
    }
);
    File[] logFilesToMove=dbLogDir.equals(dbDir) ? new File[0] : dbLogDir.listFiles();
    backupDBDir.mkdirs();
    backupLogDir.mkdirs();
    if (backupDBDir.exists() && backupLogDir.exists()) {
      for (      File f : dbFilesToMove)       if (!f.renameTo(new File(backupDBDir,f.getName())))       throw new BabuDBException(ErrorCode.IO_ERROR,"String_Node_Str" + f.getAbsolutePath() + "String_Node_Str");
      for (      File f : logFilesToMove)       if (!f.renameTo(new File(backupLogDir,f.getName())))       throw new BabuDBException(ErrorCode.IO_ERROR,"String_Node_Str" + f.getAbsolutePath() + "String_Node_Str");
    }
 else     throw new BabuDBException(ErrorCode.IO_ERROR,"String_Node_Str");
    FSUtils.copyTree(cfgFile,new File(backupDir,cfgFile.getName()));
  }
 catch (  IOException exc) {
    throw new BabuDBException(ErrorCode.IO_ERROR,"String_Node_Str",exc);
  }
}

Fixed version (ground truth):
public static void initiateConversion(int dbVer,final BabuDBConfig cfg) throws BabuDBException {
  if (!DBWriter.checkVersionSupport(dbVer))   throw new BabuDBException(ErrorCode.IO_ERROR,"String_Node_Str" + dbVer + "String_Node_Str"+ BabuDB.BABUDB_DB_FORMAT_VERSION+ "String_Node_Str");
 else   Logging.logMessage(Logging.LEVEL_INFO,Category.db,(Object)null,"String_Node_Str");
  final File dbDir=new File(cfg.getBaseDir());
  final File dbLogDir=new File(cfg.getDbLogDir());
  final File targetDir=new File(dbDir,"String_Node_Str");
  final File cfgFile=new File(dbDir,cfg.getDbCfgFile());
  final File backupDir=new File(cfg.getBaseDir(),"String_Node_Str" + dbVer);
  final File backupDBDir=new File(backupDir,"String_Node_Str");
  final File backupLogDir=new File(backupDir,"String_Node_Str");
  if (targetDir.exists())   FSUtils.delTree(targetDir);
  try {
    DBWriter.writeDB(cfg,dbVer,targetDir.getAbsolutePath());
    File[] dbFilesToMove=dbDir.listFiles(new FileFilter(){
      public boolean accept(      File pathname){
        return !(pathname.equals(targetDir) || pathname.equals(cfgFile) || pathname.equals(backupDir)|| pathname.equals(dbLogDir));
      }
    }
);
    File[] logFilesToMove=dbLogDir.equals(dbDir) ? new File[0] : dbLogDir.listFiles();
    backupDBDir.mkdirs();
    backupLogDir.mkdirs();
    if (backupDBDir.exists() && backupLogDir.exists()) {
      for (      File f : dbFilesToMove)       if (!f.renameTo(new File(backupDBDir,f.getName())))       throw new BabuDBException(ErrorCode.IO_ERROR,"String_Node_Str" + f.getAbsolutePath() + "String_Node_Str");
      for (      File f : logFilesToMove)       if (!f.renameTo(new File(backupLogDir,f.getName())))       throw new BabuDBException(ErrorCode.IO_ERROR,"String_Node_Str" + f.getAbsolutePath() + "String_Node_Str");
    }
 else     throw new BabuDBException(ErrorCode.IO_ERROR,"String_Node_Str");
    FSUtils.copyTree(cfgFile,new File(backupDir,cfgFile.getName()));
  }
 catch (  IOException exc) {
    throw new BabuDBException(ErrorCode.IO_ERROR,"String_Node_Str",exc);
  }
}