Getting a reference to Java's default http(s) URLStreamHandler

Question

I have a library that I need to use in one of my projects, which unfortunately registers its own URLStreamHandler to handle http-URLs. Is there a w

Answer 1

Here's Markus A solution rewritten for Android:

public static URLStreamHandler getURLStreamHandler(String protocolIdentifier) {
    try {
        URL url = new URL(protocolIdentifier);
        Field handlerField = URL.class.getDeclaredField("handler");
        handlerField.setAccessible(true);
        return (URLStreamHandler)handlerField.get(url);
     } catch (Exception e) {
        return null;
    }
}

The method getURLStreamHandler doesn't exist in android, so it needs to be done differently. The protocolIdentifier is the protocol name plus the colon. You need to pass in a value so that can be used to instantiate a URL instance for the protocol URLStreamHandler you want. If you want the standard "jar:" protocol handler you must enter something like this: "jar:file:!/". The "file" could be replaced with "http" or "https", as they all get you the same handler instance.

The standard Handlers that android supports are http, https, file, jar, ftp.