Program: 173344
Project: 173344
Buggy source:
/** 
 * The current player bids on a given start item.
 * @param playerName The name of the current player (for checking purposes).
 * @param itemName The name of the start item on which the bid is placed.
 * @param amount The bid amount.
 */
@Override protected boolean bid(String playerName,BidStartItem bidItem){
  StartItem item=bidItem.getStartItem();
  StartItem auctionedItem=(StartItem)currentAuctionItem.value();
  String errMsg=null;
  Player player=playerManager.getCurrentPlayer();
  int bidAmount=bidItem.getActualBid();
  while (true) {
    if (bidAmount == -1) {
      if (!bidItem.isSelectForAuction()) {
        errMsg=LocalText.getText("String_Node_Str");
        break;
      }
    }
 else {
      if ((currentStep.value() == OPEN_STEP || currentStep.value() == BID_STEP) && !item.equals(auctionedItem)) {
        errMsg=LocalText.getText("String_Node_Str",item.getId(),auctionedItem.getId());
        break;
      }
      if (bidAmount < item.getMinimumBid()) {
        errMsg=LocalText.getText("String_Node_Str",Bank.format(this,item.getMinimumBid()));
        break;
      }
      if (bidAmount % startPacket.getModulus() != 0) {
        errMsg=LocalText.getText("String_Node_Str",bidAmount,startPacket.getMinimumIncrement());
        break;
      }
      if (bidAmount > player.getCash()) {
        errMsg=LocalText.getText("String_Node_Str",Bank.format(this,bidAmount));
        break;
      }
    }
    break;
  }
  if (errMsg != null) {
    DisplayBuffer.add(this,LocalText.getText("String_Node_Str",playerName,item.getId(),errMsg));
    return false;
  }
  if (currentStep.value() == SELECT_STEP) {
    currentAuctionItem.set(item);
    item.setStatus(StartItem.AUCTIONED);
    for (    StartItem item2 : itemsToSell.view()) {
      if (item2 != item && !item2.isSold()) {
        item2.setStatus(StartItem.UNAVAILABLE);
      }
    }
    if (bidAmount == -1) {
      currentStep.set(OPEN_STEP);
    }
    ReportBuffer.add(this,"String_Node_Str");
    ReportBuffer.add(this,LocalText.getText("String_Node_Str",playerName,item.getId()));
  }
  if (bidAmount > 0) {
    item.setBid(bidAmount,player);
    item.setMinimumBid(bidAmount + 5);
    currentStep.set(BID_STEP);
    ReportBuffer.add(this,LocalText.getText("String_Node_Str",playerName,Bank.format(this,bidAmount),item.getId()));
  }
switch (currentStep.value()) {
case OPEN_STEP:
case BUY_STEP:
    Player currentPlayer=playerManager.setCurrentToNextPlayer();
  if (currentPlayer == selectingPlayer.value()) {
    currentBuyPrice.add(-10);
    currentStep.set(BUY_STEP);
    if (currentBuyPrice.value() == 0) {
      assignItem(currentPlayer,item,0,0);
    }
  }
break;
case BID_STEP:
setNextBiddingPlayer();
}
return true;
}

Fixed version (ground truth):
/** 
 * The current player bids on a given start item.
 * @param playerName The name of the current player (for checking purposes).
 * @param itemName The name of the start item on which the bid is placed.
 * @param amount The bid amount.
 */
@Override protected boolean bid(String playerName,BidStartItem bidItem){
  StartItem item=bidItem.getStartItem();
  StartItem auctionedItem=(StartItem)currentAuctionItem.value();
  String errMsg=null;
  Player player=playerManager.getCurrentPlayer();
  int bidAmount=bidItem.getActualBid();
  while (true) {
    if (bidAmount == -1) {
      if (!bidItem.isSelectForAuction()) {
        errMsg=LocalText.getText("String_Node_Str");
        break;
      }
    }
 else {
      if ((currentStep.value() == OPEN_STEP || currentStep.value() == BID_STEP) && !item.equals(auctionedItem)) {
        errMsg=LocalText.getText("String_Node_Str",item.getId(),auctionedItem.getId());
        break;
      }
      if (bidAmount < item.getMinimumBid()) {
        errMsg=LocalText.getText("String_Node_Str",Bank.format(this,item.getMinimumBid()));
        break;
      }
      if (bidAmount % startPacket.getModulus() != 0) {
        errMsg=LocalText.getText("String_Node_Str",bidAmount,startPacket.getMinimumIncrement());
        break;
      }
      if (bidAmount > player.getCash()) {
        errMsg=LocalText.getText("String_Node_Str",Bank.format(this,bidAmount));
        break;
      }
    }
    break;
  }
  if (errMsg != null) {
    DisplayBuffer.add(this,LocalText.getText("String_Node_Str",playerName,item.getId(),errMsg));
    return false;
  }
  if (currentStep.value() == SELECT_STEP) {
    currentAuctionItem.set(item);
    item.setStatus(StartItem.AUCTIONED);
    item.setAllActive();
    for (    StartItem item2 : itemsToSell.view()) {
      if (item2 != item && !item2.isSold()) {
        item2.setStatus(StartItem.UNAVAILABLE);
      }
    }
    if (bidAmount == -1) {
      currentStep.set(OPEN_STEP);
    }
    ReportBuffer.add(this,"String_Node_Str");
    ReportBuffer.add(this,LocalText.getText("String_Node_Str",playerName,item.getId()));
  }
  if (bidAmount > 0) {
    item.setBid(bidAmount,player);
    item.setMinimumBid(bidAmount + 5);
    currentStep.set(BID_STEP);
    ReportBuffer.add(this,LocalText.getText("String_Node_Str",playerName,Bank.format(this,bidAmount),item.getId()));
  }
switch (currentStep.value()) {
case OPEN_STEP:
case BUY_STEP:
    Player currentPlayer=playerManager.setCurrentToNextPlayer();
  if (currentPlayer == selectingPlayer.value()) {
    currentBuyPrice.add(-10);
    currentStep.set(BUY_STEP);
    if (currentBuyPrice.value() == 0) {
      assignItem(currentPlayer,item,0,0);
    }
  }
break;
case BID_STEP:
setNextBiddingPlayer();
}
return true;
}