docs: protected String protectSpecialChars(String str, boolean debugPrint) {
          String result = str.replace("\\", "\\\\").replace("$", "\\$");
          if (debugPrint) {
              System.out.println("    In NonVoltDBBackend.protectSpecialChars:");
              System.out.println("      str   : " + str);
              System.out.println("      result: " + result);
          }
          return result;
      }