Java Utililty Methods URL Read

final HttpURLConnection conn = connect(url, false);
final StringBuilder content = new StringBuilder();
final InputStreamReader in = new InputStreamReader(conn.getInputStream(), "UTF-8");
final char[] buff = new char[1024];
while (true) {
    final int blen = in.read(buff);
    if (blen < 0) {
        break;
...

StringBuffer response = null;
try {
    URL u = new URL(url);
    HttpURLConnection httpConnection = (HttpURLConnection) u.openConnection();
    httpConnection.setUseCaches(false);
    httpConnection.setDoOutput(true);
    httpConnection.setRequestMethod("GET");
    httpConnection.connect();
...

StringBuilder sb = new StringBuilder();
String lineSepatator = null;
try {
    lineSepatator = System.getProperty("line.separator");
} catch (Exception e) {
    lineSepatator = "\n";
try {
...

try {
    HttpURLConnection urlConnection = (HttpURLConnection) new URL(url).openConnection();
    int responseCode = urlConnection.getResponseCode();
    if (responseCode == 200) {
        return CharStreams.toString(new InputStreamReader(urlConnection.getInputStream()));
} catch (IOException e) {
return null;

URL url = new URL(uri);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.connect();
InputStream in = connection.getInputStream();
byte[] buffer = new byte[300];
int n = buffer.length;
while (n > 0) {
    n = in.read(buffer);
...

return getUrlContentWithRetries(url, timeoutMs, retryDelayMs, false);

URL url = new URL(possibleRedirectionUrl);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
int status = conn.getResponseCode();
if (status == HttpURLConnection.HTTP_MOVED_TEMP || status == HttpURLConnection.HTTP_MOVED_PERM
        || status == HttpURLConnection.HTTP_SEE_OTHER) {
    url = new URL(conn.getHeaderField("Location"));
return url;
...

try {
    URL url = new URL(urlAsString);
    HttpURLConnection hConn = (HttpURLConnection) url.openConnection(Proxy.NO_PROXY);
    hConn.setRequestProperty("User-Agent", "Mozilla/5.0 Gecko/20100915 Firefox/3.6.10");
    hConn.setConnectTimeout(timeout);
    hConn.setReadTimeout(timeout);
    byte[] arr = new byte[4096];
    BufferedInputStream in = new BufferedInputStream(hConn.getInputStream(), arr.length);
...

ArrayList<String> returnList = new ArrayList<String>();
returnList.clear();
URL site = new URL(url);
HttpURLConnection yc = (HttpURLConnection) site.openConnection();
yc.addRequestProperty("User-Agent", getRandomUserAgent());
BufferedReader in = new BufferedReader(new InputStreamReader(yc.getInputStream(), "UTF-8"));
String inputLine;
while ((inputLine = in.readLine()) != null) {
...

HttpURLConnection conn = null;
try {
    URL u = new URL(url);
    conn = (HttpURLConnection) u.openConnection();
    conn.connect();
    return conn.getResponseCode();
} catch (MalformedURLException e) {
    e.printStackTrace();
...