1 /*
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23 
24 /*
25  * @test
26  * @bug 8168840
27  * @summary InetAddress.getByName() throws java.net.UnknownHostException no such
28  * interface when used with virtual interfaces on Solaris
29  */
30 import java.net.InetAddress;
31 import java.net.NetworkInterface;
32 import java.net.SocketException;
33 import java.net.UnknownHostException;
34 import java.util.Collections;
35 import java.util.Enumeration;
36 
37 public class SubNetworkInterfaceTest {
38 
main(String args[])39     public static void main(String args[]) throws SocketException, UnknownHostException {
40         Enumeration<NetworkInterface> nets = NetworkInterface.getNetworkInterfaces();
41         for (NetworkInterface netIf : Collections.list(nets)) {
42             doReverseLookup(netIf);
43         }
44     }
45 
doReverseLookup(NetworkInterface netIf)46     static void doReverseLookup(NetworkInterface netIf) throws SocketException, UnknownHostException {
47         for (NetworkInterface subIf : Collections.list(netIf.getSubInterfaces())) {
48             Enumeration<InetAddress> subInetAddresses = subIf.getInetAddresses();
49             while (subInetAddresses != null && subInetAddresses.hasMoreElements()) {
50                 InetAddress inetAddress = subInetAddresses.nextElement();
51                 String reversalString = inetAddress.getHostAddress();
52                 //should not throw UHE in case of virtual sub interface
53                 InetAddress.getByName(reversalString);
54             }
55         }
56     }
57 }
58