Java Utililty Methods URL Read

InputStream stream = null;
int responseCode = con.getResponseCode();
if (responseCode > 399) {
    stream = con.getErrorStream();
} else {
    stream = con.getInputStream();
return stream;
...

InputStream inputStream = null;
DataInputStream dataInputStream = null;
String lineData, completeData = "";
try {
    boolean error = false;
    if (connection.getResponseCode() >= 400) {
        inputStream = connection.getErrorStream();
        error = true;
...

try {
    URL URL = new URL(URLString);
    HttpURLConnection connection = (HttpURLConnection) URL.openConnection();
    connection.setRequestProperty("User-Agent",
            "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.95 Safari/537.11");
    connection.setDoInput(true);
    BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
    return reader.readLine();
...

try {
    int rc = conn.getResponseCode();
    String s = "";
    StringBuffer html = new StringBuffer();
    try {
        BufferedReader inp = new BufferedReader(new InputStreamReader(conn.getInputStream()));
        while ((s = inp.readLine()) != null) {
            s = s.replaceAll("http://istgeo.ist.supsi.ch:80/basemaps/wms/", "ciao");
...

URL website = new URL(url);
URLConnection connection = website.openConnection();
BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
ArrayList<String> lines = new ArrayList<String>();
String inputLine;
while ((inputLine = in.readLine()) != null)
    lines.add(inputLine);
in.close();
...

URL website = new URL(url);
URLConnection connection = website.openConnection();
BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream(), "iso-8859-2"));
StringBuilder response = new StringBuilder();
String inputLine;
while ((inputLine = in.readLine()) != null)
    response.append(inputLine);
in.close();
...

final StringBuffer buffer = new StringBuffer();
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestProperty("Accept",
        "text/html,application/xhtml+xml,application/xml;" + "q=0.9,image/webp,*/*;q=0.8");
final BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
String line = reader.readLine();
while (line != null) {
    buffer.append(line);
...

StringBuilder result = new StringBuilder();
try {
    final URL website = new URL(url);
    final URLConnection connection = website.openConnection();
    final BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
    String inputLine;
    while ((inputLine = in.readLine()) != null)
        result.append(inputLine);
...

return getTextFromURL(url, defaultConnectTimeout(), defaultReadTimeout());

return getTextFromURL(url, defaultConnectTimeout(), defaultReadTimeout());