Program: 157668
Project: 157668
Buggy source:
private void addPermanentTypes(GameEvent event,Card mageObject,Game game){
  if (mageObject != null) {
    UUID playerId=null;
    if (mageObject instanceof Spell) {
      playerId=((Spell)mageObject).getControllerId();
    }
 else     if (mageObject instanceof Permanent) {
      playerId=((Permanent)mageObject).getControllerId();
    }
    if (playerId != null) {
      Set<CardType> permanentTypes=playerPlayedPermanentTypes.get(playerId);
      if (permanentTypes == null) {
        permanentTypes=EnumSet.noneOf(CardType.class);
        playerPlayedPermanentTypes.put(playerId,permanentTypes);
      }
      Set<CardType> typesNotCast=EnumSet.noneOf(CardType.class);
      for (      CardType cardType : mageObject.getCardType()) {
        if (cardType.isPermanentType()) {
          if (!permanentTypes.contains(cardType)) {
            typesNotCast.add(cardType);
          }
        }
      }
      if (typesNotCast.size() <= 1) {
        permanentTypes.addAll(typesNotCast);
      }
 else {
        Player player=game.getPlayer(playerId);
        if (player != null) {
          Choice typeChoice=new ChoiceImpl(true);
          typeChoice.setMessage("String_Node_Str");
          for (          CardType cardType : typesNotCast) {
            typeChoice.getChoices().add(cardType.toString());
          }
          if (player.choose(Outcome.Detriment,typeChoice,game)) {
            String typeName=typeChoice.getChoice();
            CardType chosenType=null;
            for (            CardType cardType : CardType.values()) {
              if (cardType.toString().equals(typeName)) {
                chosenType=cardType;
                break;
              }
            }
            if (chosenType != null) {
              permanentTypes.add(chosenType);
            }
          }
        }
      }
    }
  }
}

Fixed version (ground truth):
private void addPermanentTypes(GameEvent event,Card mageObject,Game game){
  if (mageObject != null && event.getAdditionalReference() != null) {
    UUID playerId=null;
    if (mageObject instanceof Spell) {
      playerId=((Spell)mageObject).getControllerId();
    }
 else     if (mageObject instanceof Permanent) {
      playerId=((Permanent)mageObject).getControllerId();
    }
    if (playerId != null) {
      Set<CardType> permanentTypes=sourcePlayedPermanentTypes.get(event.getAdditionalReference());
      if (permanentTypes == null) {
        permanentTypes=EnumSet.noneOf(CardType.class);
        sourcePlayedPermanentTypes.put(event.getAdditionalReference(),permanentTypes);
      }
      Set<CardType> typesNotCast=EnumSet.noneOf(CardType.class);
      for (      CardType cardType : mageObject.getCardType()) {
        if (cardType.isPermanentType()) {
          if (!permanentTypes.contains(cardType)) {
            typesNotCast.add(cardType);
          }
        }
      }
      if (typesNotCast.size() <= 1) {
        permanentTypes.addAll(typesNotCast);
      }
 else {
        Player player=game.getPlayer(playerId);
        if (player != null) {
          Choice typeChoice=new ChoiceImpl(true);
          typeChoice.setMessage("String_Node_Str");
          for (          CardType cardType : typesNotCast) {
            typeChoice.getChoices().add(cardType.toString());
          }
          if (player.choose(Outcome.Detriment,typeChoice,game)) {
            String typeName=typeChoice.getChoice();
            CardType chosenType=null;
            for (            CardType cardType : CardType.values()) {
              if (cardType.toString().equals(typeName)) {
                chosenType=cardType;
                break;
              }
            }
            if (chosenType != null) {
              permanentTypes.add(chosenType);
            }
          }
        }
      }
    }
  }
}