Java Utililty Methods URL Value Check

List of utility methods to do URL Value Check

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Description

The list of methods to do URL Value Check are organized into topic(s).

Method

booleanisHttpUrl(URL url)
Returns true if the specified url protocol is http. 
String protocol = url.getProtocol();
return url != null && (HTTP_PROTOCOL.equals(protocol) || HTTPS_PROTOCOL.equals(protocol));
booleanisHttpUrl(URL url)
is Http Url 
return url != null && "http".equalsIgnoreCase(url.getProtocol());
booleanisHttpURLAvailable(final String url)
Executes an HTTP GET Request to the given URL, using a one second connect timeout and read timeout. 
return getHttpReturnCode(url) == HttpURLConnection.HTTP_OK;
booleanisInternetReachable(String url)
is Internet Reachable 
try {
    InetAddress address = InetAddress.getByName(url);
    if (address == null) {
        return false;
} catch (UnknownHostException e) {
    return false;
return true;
booleanisJar(URL url)
is Jar 
if (url.getProtocol() != null && url.getProtocol().length() > 0) {
    if (url.getProtocol().equalsIgnoreCase("jar")) {
        return true;
return url.getPath().endsWith(".jar");
booleanisJarFile(URL url)
is Jar File 
URI uri;
try {
    uri = url.toURI();
} catch (URISyntaxException e) {
    throw new IOException(e);
String scheme = uri.getScheme();
if (scheme.equals("jar")) {
...
booleanisJarFile(URLConnection connection)
is Jar File 
return connection.getURL().toString().endsWith(JAR_EXTENSION);
booleanisJarFileURL(URL url)
Determine whether the given URL points to a jar file itself, that is, has protocol "file" and ends with the ".jar" extension. 
return (URL_PROTOCOL_FILE.equals(url.getProtocol())
        && url.getPath().toLowerCase().endsWith(JAR_FILE_EXTENSION));
booleanisJarURL(URL url)
is Jar URL 
return URL_PROTOCOL_JAR.equals(url.getProtocol());
booleanisJarURL(URL url)
Determine whether the given URL points to a resource in a jar file, that is, has protocol "jar", "zip", "wsjar" or "code-source". 
String protocol = url.getProtocol();
return (URL_PROTOCOL_JAR.equals(protocol) || URL_PROTOCOL_ZIP.equals(protocol)
        || URL_PROTOCOL_WSJAR.equals(protocol)
        || (URL_PROTOCOL_CODE_SOURCE.equals(protocol) && url.getPath().contains(JAR_URL_SEPARATOR)));