Program: 157824
Project: 157824
Buggy source:
public boolean isMatchTableStillValid(){
  if (!table.isTournament()) {
    if (!(table.getState() == TableState.WAITING || table.getState() == TableState.STARTING || table.getState() == TableState.READY_TO_START)) {
      if (match == null) {
        logger.debug("String_Node_Str");
        logger.debug("String_Node_Str" + match.getId() + "String_Node_Str"+ match.getName()+ ']');
      }
 else       if (match.isDoneSideboarding() && match.getGame() == null) {
        logger.debug("String_Node_Str");
        logger.debug("String_Node_Str" + match.getId() + "String_Node_Str"+ match.getName()+ ']');
      }
    }
    int validHumanPlayers=0;
    int aiPlayers=0;
    int humanPlayers=0;
    for (    Map.Entry<UUID,UUID> userPlayerEntry : userPlayerMap.entrySet()) {
      MatchPlayer matchPlayer=match.getPlayer(userPlayerEntry.getValue());
      if (matchPlayer == null) {
        logger.debug("String_Node_Str");
        logger.debug("String_Node_Str" + match.getId());
        logger.debug("String_Node_Str" + userPlayerEntry.getKey());
        logger.debug("String_Node_Str" + userPlayerEntry.getValue());
        continue;
      }
      if (matchPlayer.getPlayer().isHuman()) {
        humanPlayers++;
        if ((table.getState() == TableState.WAITING || table.getState() == TableState.STARTING || table.getState() == TableState.READY_TO_START) || !match.isDoneSideboarding() || (!matchPlayer.hasQuit() && match.getGame() != null && matchPlayer.getPlayer().isInGame())) {
          Optional<User> user=UserManager.instance.getUser(userPlayerEntry.getKey());
          if (!user.isPresent()) {
            logger.debug("String_Node_Str" + matchPlayer.getName());
            logger.debug("String_Node_Str" + match.getId());
            logger.debug("String_Node_Str" + userPlayerEntry.getKey());
            logger.debug("String_Node_Str" + userPlayerEntry.getValue());
            return false;
          }
          validHumanPlayers++;
        }
      }
 else {
        aiPlayers++;
      }
    }
    return validHumanPlayers >= 2 || validHumanPlayers == humanPlayers || aiPlayers > 1;
  }
  return true;
}

Fixed version (ground truth):
public boolean isMatchTableStillValid(){
  if (!table.isTournament()) {
    if (!(table.getState() == TableState.WAITING || table.getState() == TableState.STARTING || table.getState() == TableState.READY_TO_START)) {
      if (match == null) {
        logger.warn("String_Node_Str");
        logger.warn("String_Node_Str" + match.getId() + "String_Node_Str"+ match.getName()+ ']');
      }
 else       if (match.isDoneSideboarding() && match.getGame() == null) {
        logger.warn("String_Node_Str");
        logger.warn("String_Node_Str" + match.getId() + "String_Node_Str"+ match.getName()+ ']');
      }
    }
    int validHumanPlayers=0;
    int aiPlayers=0;
    int humanPlayers=0;
    for (    Map.Entry<UUID,UUID> userPlayerEntry : userPlayerMap.entrySet()) {
      MatchPlayer matchPlayer=match.getPlayer(userPlayerEntry.getValue());
      if (matchPlayer == null) {
        logger.warn("String_Node_Str");
        logger.warn("String_Node_Str" + match.getId());
        logger.warn("String_Node_Str" + userPlayerEntry.getKey());
        logger.warn("String_Node_Str" + userPlayerEntry.getValue());
        continue;
      }
      if (matchPlayer.getPlayer().isHuman()) {
        humanPlayers++;
        if ((table.getState() == TableState.WAITING || table.getState() == TableState.STARTING || table.getState() == TableState.READY_TO_START) || !match.isDoneSideboarding() || (!matchPlayer.hasQuit() && match.getGame() != null && matchPlayer.getPlayer().isInGame())) {
          Optional<User> user=UserManager.instance.getUser(userPlayerEntry.getKey());
          if (!user.isPresent()) {
            logger.warn("String_Node_Str" + matchPlayer.getName());
            logger.warn("String_Node_Str" + match.getId());
            logger.warn("String_Node_Str" + userPlayerEntry.getKey());
            logger.warn("String_Node_Str" + userPlayerEntry.getValue());
            return false;
          }
          validHumanPlayers++;
        }
      }
 else {
        aiPlayers++;
      }
    }
    return validHumanPlayers >= 2 || validHumanPlayers == humanPlayers || aiPlayers > 1;
  }
  return true;
}