java - Hashmap converting to JSONObject every `/` in the hashmap item value is replacing with this `/`

When converting HashMap to JSONObject, every / in the string will replacing with this \/why is like this?? any solution for this?
my string is

 String sumValue= "mZftaLXj7UN19zxc/7n/UZdf....";

but i'm getting like this

D/b: getBody{"****":"*****","*****":"***",SUMHASH":"mZftaLXj7UN19zxc\/7n\/UZdf****"}

I'm tried like this

 public byte[] getBody() {

  String sumValue= "mZftaLXj7UN19zxc/7n/UZdf.....";

                    HashMap params2 = new HashMap();
                    params2.put("***", "*****");
                    params2.put("***", "*****");

                    params2.put("SUMHASH", sumValue);

                    Log.d(TAG, "getBody" + new JSONObject(params2));

                    try {
                        return new JSONObject(params2).toString().getBytes("utf-8");
                    } catch (UnsupportedEncodingException e) {
                        e.printStackTrace();
                        return null;
                    }}

Given below is the output while doing

System.out.println("getBody" + new JSONObject(params2));