thufir@dur:~/eclipse-workspace/jsr374$
thufir@dur:~/eclipse-workspace/jsr374$ gradle runShadow

> Task :runShadow
Oct 22, 2017 11:59:02 AM net.bounceme.dur.json.JsonOperations tryJsonFromUrl
INFO: https://my-json-server.typicode.com/typicode/demo/db
Oct 22, 2017 11:59:03 AM net.bounceme.dur.json.Main json
INFO: {"posts":[{"id":1,"title":"Post 1"},{"id":2,"title":"Post 2"},{"id":3,"title":"Post 3"}],"comments":[{"id":1,"body":"some comment","postId":1},{"id":2,"body":"some comment","postId":1}],"profile":{"name":"typicode"}}


BUILD SUCCESSFUL in 2s
6 actionable tasks: 1 executed, 5 up-to-date
thufir@dur:~/eclipse-workspace/jsr374$

package net.bounceme.dur.json;

import java.io.IOException;
import java.io.InputStream;
import java.io.StringReader;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Scanner;
import java.util.logging.Logger;

import javax.json.Json;
import javax.json.JsonObject;
import javax.json.JsonReader;

public class JsonOperations {

    private static final Logger LOG = Logger.getLogger(JsonOperations.class.getName());

    private JsonObject readJsonFromString(String jsonString) {
        JsonReader jsonReader = Json.createReader(new StringReader(jsonString));
        JsonObject jsonObject = jsonReader.readObject();
        return jsonObject;
    }

    private String convertStreamToString(InputStream is) {
        Scanner scanner = null;
        scanner = new java.util.Scanner(is);
        scanner = scanner.useDelimiter("\A");
        return scanner.hasNext() ? scanner.next() : "";
    }

    public JsonObject tryJsonFromUrl(String urlString) {
        LOG.info(urlString);
        JsonObject jsonObject = null;
        try {
            jsonObject = jsonFromUrl(urlString);
        } catch (IOException e) {
        //  e.printStackTrace();
            LOG.severe(e.toString());
        }
        return jsonObject;
    }

    private JsonObject jsonFromUrl(String urlString) throws MalformedURLException, IOException {
        LOG.fine(urlString);
        InputStream inputStream = new URL(urlString).openStream();
        String jsonString = convertStreamToString(inputStream);
        inputStream.close();
        LOG.fine(jsonString);
        JsonObject jsonObject = readJsonFromString(jsonString);
        return jsonObject;
    }

}