Dynamic Return Type in Java method

Question

I\'ve seen a question similar to this multiple times here, but there is one big difference.

In the other questions, the return type is to be determined by the parameter.

Answer 1

My 2 cents with an example with Google HTTP client:

static public  Any getJson(final String url, final Class parseAs) throws IOException {
        HttpRequestFactory requestFactory
                = HTTP_TRANSPORT.createRequestFactory(
                (HttpRequest request) -> {
                    request.setParser(new JsonObjectParser(JSON_FACTORY));
                });

        HttpRequest request = requestFactory.buildRequest(HttpMethods.GET, new GenericUrl(url), null);

        return request.execute().parseAs(parseAs);
    }

Can be use like this:

HashMap out = HttpUtils.getJson( "https://api.qwant.com", HashMap.class);