### Question:
HttpUtil { public static boolean isKeepAlive(HttpMessage message) { CharSequence connection = message.headers().get(HttpHeaderNames.CONNECTION); if (HttpHeaderValues.CLOSE.contentEqualsIgnoreCase(connection)) { return false; } if (message.protocolVersion().isKeepAliveDefault()) { return !HttpHeaderValues.CLOSE.contentEqualsIgnoreCase(connection); } else { return HttpHeaderValues.KEEP_ALIVE.contentEqualsIgnoreCase(connection); } } private  HttpUtil(); static boolean isOriginForm(URI uri); static boolean isAsteriskForm(URI uri); static boolean isKeepAlive(HttpMessage message); static void setKeepAlive(HttpMessage message, boolean keepAlive); static void setKeepAlive(HttpHeaders h, HttpVersion httpVersion, boolean keepAlive); static long getContentLength(HttpMessage message); static long getContentLength(HttpMessage message, long defaultValue); static int getContentLength(HttpMessage message, int defaultValue); static void setContentLength(HttpMessage message, long length); static boolean isContentLengthSet(HttpMessage m); static boolean is100ContinueExpected(HttpMessage message); static void set100ContinueExpected(HttpMessage message, boolean expected); static boolean isTransferEncodingChunked(HttpMessage message); static void setTransferEncodingChunked(HttpMessage m, boolean chunked); static Charset getCharset(HttpMessage message); static Charset getCharset(CharSequence contentTypeValue); static Charset getCharset(HttpMessage message, Charset defaultCharset); static Charset getCharset(CharSequence contentTypeValue, Charset defaultCharset); @Deprecated static CharSequence getCharsetAsString(HttpMessage message); static CharSequence getCharsetAsSequence(HttpMessage message); static CharSequence getCharsetAsSequence(CharSequence contentTypeValue); static CharSequence getMimeType(HttpMessage message); static CharSequence getMimeType(CharSequence contentTypeValue); static String formatHostnameForHttp(InetSocketAddress addr);  }### Answer:
@Test public void testKeepAliveIfConnectionHeaderAbsent() { HttpMessage http11Message = new DefaultHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.GET, "http:localhost/http_1_1"); assertTrue(HttpUtil.isKeepAlive(http11Message)); HttpMessage http10Message = new DefaultHttpRequest(HttpVersion.HTTP_1_0, HttpMethod.GET, "http:localhost/http_1_0"); assertFalse(HttpUtil.isKeepAlive(http10Message)); }