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

booleanisJarURL(URL url)
is Jar URL 
String protocol = url.getProtocol();
return "jar".equals(protocol) || "zip".equals(protocol) || "wsjar".equals(protocol)
        || "code-source".equals(protocol) && url.getPath().contains("!/");
booleanisJarURL(URL url)
Returns true if specified URL is a jar: URL, otherwise returns false 
return "jar".equals(url.getProtocol());
booleanisJarURL(URL url)
Is this URL a Jar URL? 
String surl = url.toString();
if (surl.endsWith(".jar") || surl.startsWith("jar:")) {
    return true;
return false;
booleanisJarURL(URL url)
is Jar URL 
String protocol = url.getProtocol();
return (URL_PROTOCOL_JAR.equals(protocol) || URL_PROTOCOL_ZIP.equals(protocol)
        || URL_PROTOCOL_VFSZIP.equals(protocol) || URL_PROTOCOL_WSJAR.equals(protocol));
booleanisJBoss5Url(URL fileUrl)
Check if given URL is pointing to JBoss 5 VFS resource 
final String protocol = fileUrl.getProtocol();
return JBOSS5_VFSZIP.equals(protocol) || JBOSS5_VFSMEMORY.equals(fileUrl.getProtocol());
booleanisLegalURL(final String url)
Proves if the given string is a valid URL. 
if ((url == null) || (url.trim().length() == 0)) {
    return false;
try {
    final URL u = new URL(url);
    u.openConnection();
    return true;
} catch (final MalformedURLException e) {
...
booleanisLocal(URL aURL)
Returns whether a URL is local. 
String url = aURL.toExternalForm().toLowerCase();
return url.startsWith("file:") || url.startsWith("jar:file:");
booleanisLocalFile(URL url)
Adapted from http://www.java2s.com/Code/Java/Network-Protocol/IsURLalocalfile.htm 
return ((url.getProtocol().equals("file")) && (url.getHost() == null || url.getHost().equals("")));
booleanisLocalFile(URL url)
is Local File 
if (url.getProtocol().equals("file") && (url.getAuthority() == null || url.getAuthority().equals(""))
        && (url.getHost() == null || url.getHost().equals(("")))) {
    return true;
return false;
booleanisLocalFile(URL url)
is Local File 
try {
    if (url.getProtocol().equals(new File(url.getFile()).toURI().toURL().getProtocol())) {
        return true;
} catch (Throwable throwable) {
    throwable.printStackTrace();
return false;
...