@Test
    public void testAccessHawtIO() throws Exception {

        URL url = new URL("http://localhost:8080/hawtio/jolokia/read/java.lang:type=Memory/HeapMemoryUsage/used");
        URLConnection conn = url.openConnection();
        try {
            // Accessing hawtio requires an admin id/password.
            String userpass = USERNAME + ":" + PASSWORD;
            String basicAuth = "Basic " + javax.xml.bind.DatatypeConverter.printBase64Binary(userpass.getBytes());
            conn.setRequestProperty("Authorization", basicAuth);

            int code = ((HttpURLConnection) conn).getResponseCode();
            assertEquals(200, code);
            String content = new String(readFully((InputStream) conn.getContent()), "UTF-8");

            // Let check to see if it has some of the expected output.
            assertTrue("Unexpected content: "+content, content.contains("\"mbean\":\"java.lang:type=Memory\""));

        } finally {
            try {
                conn.getInputStream().close();
            } catch (Throwable ignore) {
            }
        }

    }