// Both should use the same handler instance
        assertNotNull(url1);
        assertNotNull(url2);

        // Protocol should be consistent
        assertEquals(url1.getProtocol(), url2.getProtocol());
        assertEquals("smb", url1.getProtocol());
    }

        Handler handler = newHandler();
        URL url = new URL(null, "smb://", handler);

        // Assert
        assertEquals("smb", url.getProtocol());
        assertEquals(SmbConstants.DEFAULT_PORT, url.getPort(), "Default port applied for root smb URL");
        assertNull(url.getRef(), "Ref should remain null for root URL");
    }

    @Test

        return DEFAULT_HTTP_PORT;
    }

    @Override
    protected URLConnection openConnection(URL url) throws IOException {
        url = new URL(url, url.toExternalForm(), getDefaultStreamHandler(url.getProtocol()));
        return new NtlmHttpURLConnection((HttpURLConnection) url.openConnection());
    }

    private static URLStreamHandler getDefaultStreamHandler(final String protocol) throws IOException {

            return null;
        }

        @Override
        public Map<String, String[]> getParameterMap() {
            return null;
        }

        @Override
        public String getProtocol() {
            return null;
        }

        @Override
        public String getScheme() {
            return null;
        }

        @Override
        public String getServerName() {

        return DEFAULT_HTTP_PORT;
    }

    @Override
    protected URLConnection openConnection(URL url) throws IOException {
        url = new URL(url, url.toExternalForm(), getDefaultStreamHandler(url.getProtocol()));
        return new NtlmHttpURLConnection((HttpURLConnection) url.openConnection(), this.transportContext);
    }

    private static URLStreamHandler getDefaultStreamHandler(final String protocol) throws IOException {

      assertThat(urls.get(0).getProtocol()).isEqualTo("file");
      assertThat(urls.get(0).getAuthority()).isNull();
      assertThat(urls.get(0).getPath()).endsWith("/relative/path/to/some.jar");

      assertThat(urls.get(1)).isEqualTo(new URL("file:///absolute/path/to/some.jar"));

      assertThat(urls.get(2).getProtocol()).isEqualTo("file");
      assertThat(urls.get(2).getAuthority()).isNull();

        }

        @Override
        public java.util.Map<String, String[]> getParameterMap() {
            return new java.util.HashMap<>();
        }

        @Override
        public String getProtocol() {
            return "HTTP/1.1";
        }

        @Override
        public String getScheme() {
            return "http";
        }

        @Override

                if (!allowUserInteraction) {
                    return null;
                }
                try {
                    final URL url = getURL();
                    final String protocol = url.getProtocol();
                    int port = url.getPort();
                    if (port == -1) {
                        port = "https".equalsIgnoreCase(protocol) ? 443 : 80;
                    }

            }

            @Override
            public java.util.Map<String, String[]> getParameterMap() {
                return null;
            }

            @Override
            public String getProtocol() {
                return null;
            }

            @Override
            public String getScheme() {
                return null;
            }

            @Override

                    paramMap.put(entry.getKey(), new String[] { entry.getValue() });
                }
            }
            return paramMap;
        }

        @Override
        public String getProtocol() {
            throw new UnsupportedOperationException();
        }

        @Override
        public String getScheme() {
            throw new UnsupportedOperationException();
        }