Java Utililty Methods URL Connection

URL url = new URL(inputUrlString);
return getPageContent(url);

URLConnection connection = url.openConnection();
Map<String, List<String>> header = connection.getHeaderFields();
while (isRedirected(header)) {
    if (Thread.currentThread().isInterrupted()) {
        throw new InterruptedException();
    url = new URL(header.get("Location").get(0));
    connection = url.openConnection();
...

try {
    URL u = new URL(url);
    URLConnection urlc = u.openConnection();
    return urlc.getLastModified();
} catch (Exception e) {
    return -1L;

if (useStdHeaders)
    for (int i = 0; i < stdReqHdr.length - 1; i++)
        conn.setRequestProperty(stdReqHdr[i], stdReqHdr[i + 1]);
conn.setDoOutput(true);
conn.connect();

StringBuffer headers = new StringBuffer();
String key;
int n = 1;
headers.append("\n----------\n");
while ((key = conn.getHeaderFieldKey(n)) != null) {
    String value = conn.getHeaderField(n);
    headers.append(key + ": " + value + "\n");
    n++;
...

InputStreamReader in;
if (encoding != null) {
    in = new InputStreamReader(source.getInputStream(), encoding);
} else {
    in = new InputStreamReader(source.getInputStream());
StringBuilder sb = new StringBuilder();
while (true) {
...

URLConnection conn = url.openConnection();
conn.setDefaultUseCaches(false);
conn.setUseCaches(false);
return new InputStreamReader(conn.getInputStream());

URL url = new URL(stringUrl);
URLConnection urlConnection = url.openConnection();
urlConnection.setReadTimeout(timeOutInMilli);
urlConnection.setConnectTimeout(timeOutInMilli);
return urlConnection;

URLConnection page = url.openConnection();
page.addRequestProperty("User-Agent", USER_AGENT);
InputStream is = page.getInputStream();
BufferedReader br = new BufferedReader(new InputStreamReader(is));
String result = "";
String line = "";
while ((line = br.readLine()) != null) {
    result += line + "\r\n";
...

return connection.getContentType();