code: private void appendEntry(Map.Entry<String, EDBObjectEntry> entry, StringBuilder builder) {
          if (builder.length() > 2) {
              builder.append(",");
          }
          builder.append(" \"").append(entry.getKey()).append("\"");
          builder.append(" : ").append(entry.getValue());
      }
docs: Analyzes the entry and write the specific information into the StringBuilder.