1 /*
2  * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved.
3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4  *
5  * This code is free software; you can redistribute it and/or modify it
6  * under the terms of the GNU General Public License version 2 only, as
7  * published by the Free Software Foundation.
8  *
9  * This code is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12  * version 2 for more details (a copy is included in the LICENSE file that
13  * accompanied this code).
14  *
15  * You should have received a copy of the GNU General Public License version
16  * 2 along with this work; if not, write to the Free Software Foundation,
17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18  *
19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20  * or visit www.oracle.com if you need additional information or have any
21  * questions.
22  */
23 package test.java.net.InetAddress;
24 
25 /**
26  * @test
27  * @bug 4639861 8133015
28  * @summary API to test reachability of a host
29  */
30 import java.net.InetAddress;
31 import java.io.IOException;
32 import java.net.NetworkInterface;
33 import org.testng.annotations.Test;
34 import static org.testng.Assert.fail;
35 
36 public class IsReachable {
37     @Test
testIsReachable()38     public void testIsReachable() {
39         try {
40             InetAddress addr = InetAddress.getByName("localhost");
41             if (!addr.isReachable(10000))
42                 fail("Localhost should always be reachable");
43             NetworkInterface inf = NetworkInterface.getByInetAddress(addr);
44             if (inf != null) {
45                 if (!addr.isReachable(inf, 20, 10000))
46                     fail("Localhost should always be reachable");
47             }
48         } catch (IOException e) {
49             fail("Unexpected exception:" + e);
50         }
51     }
52 }