jdk/test/java/net/InetAddress/CheckJNI.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * 2 along with this work; if not, write to the Free Software Foundation,
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/* @test
   @bug 4889870 4890033
   @summary java -Xcheck:jni failing in net code on Solaris / [Datagram]Socket.getLocalAddress() failure
   @library /lib/testlibrary
   @build jdk.testlibrary.NetworkConfiguration
   @run main/othervm -Xcheck:jni CheckJNI
*/

import java.net.*;
import java.util.*;
import java.util.stream.Collectors;
import jdk.testlibrary.NetworkConfiguration;

public class CheckJNI {
    static Socket s;
    static ServerSocket server;
    static DatagramSocket dg1, dg2;

    public static void main (String[] args) throws Exception {
        /* try to invoke as much java.net native code as possible */

        System.out.println ("Testing IPv4 Socket/ServerSocket");
        server = new ServerSocket (0);
        s = new Socket ("127.0.0.1", server.getLocalPort());
        s.close();
        server.close();

        System.out.println ("Testing IPv4 DatagramSocket");
        dg1 = new DatagramSocket (0, InetAddress.getByName ("127.0.0.1"));
        dg2 = new DatagramSocket (0, InetAddress.getByName ("127.0.0.1"));
        testDatagrams (dg1, dg2);

        /* Find link local IPv6 addrs to test */
        List<Inet6Address> addrs = NetworkConfiguration.probe()
                .ip6Addresses()
                .filter(Inet6Address::isLinkLocalAddress)
                .collect(Collectors.toList());

        server = new ServerSocket(0);
        for (Inet6Address ia6 : addrs) {
            System.out.println("Address:" + ia6);
            System.out.println("Testing IPv6 Socket");
            s = new Socket(ia6, server.getLocalPort());
            s.close();

            System.out.println("Testing IPv6 DatagramSocket");
            dg1 = new DatagramSocket(0, ia6);
            dg2 = new DatagramSocket(0, ia6);
            testDatagrams(dg1, dg2);
        }
        server.close();
        System.out.println ("OK");
    }

    static void testDatagrams (DatagramSocket s1, DatagramSocket s2) throws Exception {
        DatagramPacket p1 = new DatagramPacket (
                "hello world".getBytes(),
                0, "hello world".length(), s2.getLocalAddress(),
                s2.getLocalPort()
        );

        DatagramPacket p2 = new DatagramPacket (new byte[128], 128);
        s1.send (p1);
        s2.receive (p2);
        s1.close ();
        s2.close ();
    }
}