Program: 161911
Project: 161911
Buggy source:
public boolean restoreAll(){
  Path tfpath=cfg.getTfPath();
  Path customBackupPath=tfpath.resolve("String_Node_Str");
  Path customPath=tfpath.resolve("String_Node_Str");
  Path configBackupPath=tfpath.resolve("String_Node_Str");
  Path configPath=tfpath.resolve("String_Node_Str");
  boolean restoreComplete=true;
  if (Files.exists(customBackupPath)) {
    log.fine("String_Node_Str");
    try {
      delete(customPath);
    }
 catch (    NoSuchFileException e) {
    }
catch (    IOException e) {
      log.info("String_Node_Str" + e);
    }
    try {
      if (isEmpty(customPath)) {
        copy(customBackupPath,customPath);
      }
 else {
        restoreComplete=false;
      }
    }
 catch (    IOException e) {
      log.info("String_Node_Str" + e);
      restoreComplete=false;
    }
  }
  if (Files.exists(configBackupPath)) {
    log.fine("String_Node_Str");
    try {
      delete(configPath);
    }
 catch (    NoSuchFileException e) {
    }
catch (    IOException e) {
      log.info("String_Node_Str" + e);
    }
    try {
      if (isEmpty(configPath)) {
        copy(configBackupPath,configPath);
      }
 else {
        restoreComplete=false;
      }
    }
 catch (    IOException e) {
      log.info("String_Node_Str" + e);
      restoreComplete=false;
    }
  }
  Path zip=tfpath.resolve("String_Node_Str" + Util.now("String_Node_Str") + "String_Node_Str");
  if (Files.exists(configBackupPath) || Files.exists(customBackupPath)) {
    log.info("String_Node_Str" + zip);
    try {
      Zip.create(zip,Arrays.asList(configBackupPath,customBackupPath));
    }
 catch (    IllegalArgumentException|IOException e) {
      log.info("String_Node_Str" + e);
    }
  }
  if (restoreComplete) {
    try {
      if (Files.exists(configBackupPath)) {
        log.info("String_Node_Str");
        delete(configBackupPath);
      }
      if (Files.exists(customBackupPath)) {
        log.info("String_Node_Str");
        delete(customBackupPath);
      }
    }
 catch (    IOException e) {
      log.info("String_Node_Str" + e);
      restoreComplete=false;
    }
  }
  if (!restoreComplete) {
    log.info("String_Node_Str");
    log.info("String_Node_Str");
    log.info("String_Node_Str");
    log.info("String_Node_Str");
    log.info("String_Node_Str");
  }
 else {
    log.info("String_Node_Str");
    if (cfg.getBoolean(Key.DeleteBackupsWhenRestoring)) {
      try {
        if (Files.deleteIfExists(zip)) {
          log.info("String_Node_Str" + zip);
        }
      }
 catch (      IOException e) {
        log.info("String_Node_Str" + e);
      }
    }
  }
  return restoreComplete;
}

Fixed version (ground truth):
public boolean restoreAll(){
  Path tfpath=cfg.getTfPath();
  Path customBackupPath=tfpath.resolve("String_Node_Str");
  Path customPath=tfpath.resolve("String_Node_Str");
  Path configBackupPath=tfpath.resolve("String_Node_Str");
  Path configPath=tfpath.resolve("String_Node_Str");
  boolean restoreComplete=true;
  if (Files.exists(customBackupPath)) {
    log.fine("String_Node_Str");
    try {
      delete(customPath);
    }
 catch (    NoSuchFileException e) {
      log.fine("String_Node_Str" + e);
    }
catch (    IOException e) {
      log.info("String_Node_Str" + e);
    }
    try {
      if (isEmpty(customPath)) {
        copy(customBackupPath,customPath);
      }
 else {
        restoreComplete=false;
      }
    }
 catch (    IOException e) {
      log.info("String_Node_Str" + e);
      restoreComplete=false;
    }
  }
  if (Files.exists(configBackupPath)) {
    log.fine("String_Node_Str");
    try {
      delete(configPath);
    }
 catch (    NoSuchFileException e) {
      log.fine("String_Node_Str" + e);
    }
catch (    IOException e) {
      log.info("String_Node_Str" + e);
    }
    try {
      if (isEmpty(configPath)) {
        copy(configBackupPath,configPath);
      }
 else {
        restoreComplete=false;
      }
    }
 catch (    IOException e) {
      log.info("String_Node_Str" + e);
      restoreComplete=false;
    }
  }
  Path zip=tfpath.resolve("String_Node_Str" + Util.now("String_Node_Str") + "String_Node_Str");
  if (Files.exists(configBackupPath) || Files.exists(customBackupPath)) {
    log.info("String_Node_Str" + zip);
    try {
      Zip.create(zip,Arrays.asList(configBackupPath,customBackupPath));
    }
 catch (    IllegalArgumentException|IOException e) {
      log.info("String_Node_Str" + e);
    }
  }
  if (restoreComplete) {
    try {
      if (Files.exists(configBackupPath)) {
        log.info("String_Node_Str");
        delete(configBackupPath);
      }
      if (Files.exists(customBackupPath)) {
        log.info("String_Node_Str");
        delete(customBackupPath);
      }
    }
 catch (    IOException e) {
      log.info("String_Node_Str" + e);
      restoreComplete=false;
    }
  }
  if (!restoreComplete) {
    log.info("String_Node_Str");
    log.info("String_Node_Str");
    log.info("String_Node_Str");
    log.info("String_Node_Str");
    log.info("String_Node_Str");
  }
 else {
    log.info("String_Node_Str");
    if (cfg.getBoolean(Key.DeleteBackupsWhenRestoring)) {
      try {
        if (Files.deleteIfExists(zip)) {
          log.info("String_Node_Str" + zip);
        }
      }
 catch (      IOException e) {
        log.info("String_Node_Str" + e);
      }
    }
  }
  return restoreComplete;
}