Program: 40116
Project: 40116
Buggy source:
private static List<Point> selectSet(Analyzer data,GameMap gameMap){
  if (!data.getFiveAttack().isEmpty()) {
    return new ArrayList<>(data.getFiveAttack());
  }
  if (!data.getFourDefence().isEmpty()) {
    return new ArrayList<>(data.getFourDefence());
  }
  if (!data.getThreeDefence().isEmpty()) {
    return new ArrayList<Point>(data.getFourAttack()){
{
        addAll(data.getThreeDefence());
      }
    }
;
  }
  if (!data.getDoubleFourCloseDefence().isEmpty()) {
    Point deadPoint=data.getDoubleFourCloseDefence().iterator().next();
    Set<Point> linePoints=gameMap.getPointLinesNeighbor(deadPoint);
    Set<Point> result=new HashSet<>();
    result.add(deadPoint);
    result.addAll(data.getFourAttack());
    data.getFourCloseDefence().forEach((k,v) -> {
      if (linePoints.contains(k)) {
        result.add(k);
      }
    }
);
    return new ArrayList<>(result);
  }
  if (!data.getDoubleThreeOpenDefense().isEmpty()) {
    Point deadPoint=data.getDoubleThreeOpenDefense().iterator().next();
    Set<Point> linePoints=gameMap.getPointLinesNeighbor(deadPoint);
    Set<Point> result=new HashSet<>();
    result.add(deadPoint);
    result.addAll(data.getFourAttack());
    result.addAll(data.getThreeOpenAttack());
    data.getThreeOpenDefence().forEach((k,v) -> {
      if (linePoints.contains(k)) {
        result.add(k);
      }
    }
);
    return new ArrayList<>(result);
  }
  if (!data.getFourCloseAndOpenThreeDefense().isEmpty()) {
    Point deadPoint=data.getFourCloseAndOpenThreeDefense().iterator().next();
    Set<Point> linePoints=gameMap.getPointLinesNeighbor(deadPoint);
    Set<Point> result=new HashSet<>();
    result.addAll(data.getFourAttack());
    result.add(deadPoint);
    data.getThreeOpenDefence().forEach((k,v) -> {
      if (linePoints.contains(k)) {
        result.add(k);
      }
    }
);
    data.getFourCloseDefence().forEach((k,v) -> {
      if (linePoints.contains(k)) {
        result.add(k);
      }
    }
);
    return new ArrayList<>(result);
  }
  List<Point> result=new ArrayList<>();
  result.addAll(data.getFourAttack());
  result.addAll(data.getThreeOpenAttack());
  result.addAll(data.getTwoAttack());
  result.addAll(data.getNotKey());
  while (result.size() > Config.nodeLimit) {
    result=result.subList(0,Config.nodeLimit);
  }
  return result;
}

Fixed version (ground truth):
private static List<Point> selectSet(Analyzer data,GameMap gameMap){
  if (!data.getFiveAttack().isEmpty()) {
    return new ArrayList<>(data.getFiveAttack());
  }
  if (!data.getFourDefence().isEmpty()) {
    return new ArrayList<>(data.getFourDefence());
  }
  if (!data.getThreeDefence().isEmpty()) {
    return new ArrayList<Point>(data.getFourAttack()){
{
        addAll(data.getThreeDefence());
      }
    }
;
  }
  if (!data.getDoubleFourCloseDefence().isEmpty()) {
    Point deadPoint=data.getDoubleFourCloseDefence().iterator().next();
    Set<Point> linePoints=gameMap.getPointLinesNeighbor(deadPoint);
    Set<Point> result=new HashSet<>();
    result.add(deadPoint);
    result.addAll(data.getFourAttack());
    data.getFourCloseDefence().forEach((k,v) -> {
      if (linePoints.contains(k)) {
        result.add(k);
      }
    }
);
    return new ArrayList<>(result);
  }
  if (!data.getFourCloseAndOpenThreeDefense().isEmpty()) {
    Point deadPoint=data.getFourCloseAndOpenThreeDefense().iterator().next();
    Set<Point> linePoints=gameMap.getPointLinesNeighbor(deadPoint);
    Set<Point> result=new HashSet<>();
    result.addAll(data.getFourAttack());
    result.add(deadPoint);
    data.getThreeOpenDefence().forEach((k,v) -> {
      if (linePoints.contains(k)) {
        result.add(k);
      }
    }
);
    data.getFourCloseDefence().forEach((k,v) -> {
      if (linePoints.contains(k)) {
        result.add(k);
      }
    }
);
    return new ArrayList<>(result);
  }
  if (!data.getDoubleThreeOpenDefense().isEmpty()) {
    Point deadPoint=data.getDoubleThreeOpenDefense().iterator().next();
    Set<Point> linePoints=gameMap.getPointLinesNeighbor(deadPoint);
    Set<Point> result=new HashSet<>();
    result.add(deadPoint);
    result.addAll(data.getFourAttack());
    result.addAll(data.getThreeOpenAttack());
    data.getThreeOpenDefence().forEach((k,v) -> {
      if (linePoints.contains(k)) {
        result.add(k);
      }
    }
);
    return new ArrayList<>(result);
  }
  List<Point> result=new ArrayList<>();
  result.addAll(data.getFourAttack());
  result.addAll(data.getThreeOpenAttack());
  result.addAll(data.getTwoAttack());
  result.addAll(data.getNotKey());
  while (result.size() > Config.nodeLimit) {
    result=result.subList(0,Config.nodeLimit);
  }
  return result;
}