public void append(StringBuilder builder, String indent) {
    initialCondition.append(builder, indent);
    int conditionSize = conditions.size();

    // for each it is slower
    for (int i = 0; i < conditionSize; ++i) {
      conditions.get(i).append(builder.append(".\n").append(indent), indent);
    }
  }
public void append(StringBuilder builder, String indent)