See discussion in #6636.
Currently, an implementation detail leaks here:

>  "minping": 9223372036854.775,

This is `std::numeric_limits<int64_t>::max()` milliseconds, or approximately 300,000 years. What we really want to communicate here is that the information is missing. So it would be better to report it as `null`.

>  "minping": null,

#include "rpc/server.h"
#include "chainparams.h"
#include "clientversion.h"
#include "main.h"
#include "net.h"
#include "netbase.h"
#include "protocol.h"
#include "sync.h"
#include "timedata.h"
#include "ui_interface.h"
#include "util.h"
#include "utilstrencodings.h"
#include "version.h"
#include <boost/foreach.hpp>
#include <univalue.h>
using namespace std;
UniValue getconnectioncount(const UniValue& params, bool fHelp)