Java Utililty Methods URL Read

if (urlString.contains("id")) {
    StringBuilder html = new StringBuilder();
    InputStreamReader isr = null;
    BufferedReader br = null;
    try {
        URL url = new URL(urlString);
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        isr = new InputStreamReader(conn.getInputStream());
...

URL url;
HttpURLConnection conn;
BufferedReader rd;
String line;
String result = "";
try {
    url = new URL(urlToRead);
    conn = (HttpURLConnection) url.openConnection();
...

URL url;
HttpURLConnection conn;
BufferedReader rd;
String line;
StringBuilder result = new StringBuilder();
try {
    url = new URL(urlToRead);
    conn = (HttpURLConnection) url.openConnection();
...

System.out.println("response code:" + conn.getResponseMessage());
if (conn.getResponseCode() != expectedReturnCode) {
    System.out.println("Custom Error:" + conn.getResponseCode());
    throw new IOException(conn.getResponseMessage());
BufferedReader rd = new BufferedReader(new InputStreamReader(conn.getInputStream()));
StringBuilder sb = new StringBuilder();
String line;
...

HttpURLConnection con = (HttpURLConnection) (new URL(url)).openConnection();
BufferedReader reader = new BufferedReader(new InputStreamReader(
        "gzip".equals(con.getContentEncoding()) ? new GZIPInputStream(con.getInputStream())
                : con.getInputStream()));
StringBuilder response = new StringBuilder();
String l;
while ((l = reader.readLine()) != null) {
    response.append(l);
...

URL url = new URL(urlStr);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("GET");
conn.setRequestProperty("Accept", "application/json");
conn.setConnectTimeout(5000);
if (conn.getResponseCode() != 200) {
    throw new RuntimeException("Failed : HTTP error code : " + conn.getResponseCode());
BufferedReader br = new BufferedReader(new InputStreamReader((conn.getInputStream())));
StringBuilder outputBuilder = new StringBuilder();
String output;
while ((output = br.readLine()) != null) {
    outputBuilder.append(output);
conn.disconnect();
return outputBuilder.toString();

long result = conn.getHeaderFieldDate("Last-Modified", 0L);
return result;

return connection.getHeaderFieldDate(LAST_MODIFIED, -1);

try {
    HttpURLConnection connection;
    connection = (HttpURLConnection) new URL(url).openConnection();
    connection.setConnectTimeout(3000);
    connection.connect();
    long length = connection.getContentLength();
    connection.disconnect();
    return length;
...

URLConnection connection;
while (true) {
    connection = url.openConnection();
    if (connection instanceof HttpURLConnection) {
        int responseCode = ((HttpURLConnection) connection).getResponseCode();
        if (responseCode == HttpURLConnection.HTTP_OK) {
            break;
        } else {
...