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* FITNESS FOR A PARTICULAR PURPOSE . See the GNU General Public License
* version 2 for more details ( a copy is included in the LICENSE file that
* accompanied this code ) .
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* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
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*/
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.MulticastSocket;
import java.net.NetworkInterface;
import java.util.ArrayList;
import java.util.List;
import jdk.test.lib.NetworkConfiguration;
import jdk.test.lib.net.IPSupport;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
import static java.lang.String.format;
import static java.lang.System.out;
import static java.net.StandardSocketOptions.IP_MULTICAST_IF;
import static java.util.stream.Collectors.toList;
import static org.testng.Assert .assertEquals;
import static org.testng.Assert .assertTrue;
/**
* @ test
* @ bug 8236441
* @ summary Bound MulticastSocket fails when setting outbound interface on Windows
* @ library / test / lib
* @ run testng IPMulticastIF
* @ run testng / othervm - Djava . net . preferIPv4Stack = true IPMulticastIF
* @ run testng / othervm - Djava . net . preferIPv6Addresses = true IPMulticastIF
* @ run testng / othervm - Djava . net . preferIPv6Addresses = true - Djava . net . preferIPv4Stack = true IPMulticastIF
*/
public class IPMulticastIF {
@BeforeTest
public void sanity() {
IPSupport.throwSkippedExceptionIfNonOperational();
NetworkConfiguration.printSystemConfiguration(out);
}
@DataProvider(name = "scenarios" )
public Object[][] positive() throws Exception {
List<InetAddress> addrs = List.of(InetAddress.getLocalHost(),
InetAddress.getLoopbackAddress());
List<Object[]> list = new ArrayList<>();
NetworkConfiguration nc = NetworkConfiguration.probe();
addrs.stream().forEach(a -> nc.multicastInterfaces(true )
.map(nif -> new Object[] { new InetSocketAddress(a, 0 ), nif })
.forEach(list::add) );
return list.stream().toArray(Object[][]::new );
}
@Test(dataProvider = "scenarios" )
public void testSetGetInterfaceBound(InetSocketAddress bindAddr, NetworkInterface nif)
throws Exception
{
out.println(format("\n\n--- testSetGetInterfaceBound bindAddr=[%s], nif=[%s]" , bindAddr, nif));
try (MulticastSocket ms = new MulticastSocket(bindAddr)) {
ms.setNetworkInterface(nif);
NetworkInterface msNetIf = ms.getNetworkInterface();
assertEquals(msNetIf, nif);
}
}
@Test(dataProvider = "scenarios" )
public void testSetGetInterfaceUnbound(InetSocketAddress ignore, NetworkInterface nif)
throws Exception
{
out.println(format("\n\n--- testSetGetInterfaceUnbound nif=[%s]" , nif));
try (MulticastSocket ms = new MulticastSocket()) {
ms.setNetworkInterface(nif);
NetworkInterface msNetIf = ms.getNetworkInterface();
assertEquals(msNetIf, nif);
}
}
@Test(dataProvider = "scenarios" )
public void testSetGetOptionBound(InetSocketAddress bindAddr, NetworkInterface nif)
throws Exception
{
out.println(format("\n\n--- testSetGetOptionBound bindAddr=[%s], nif=[%s]" , bindAddr, nif));
try (MulticastSocket ms = new MulticastSocket(bindAddr)) {
ms.setOption(IP_MULTICAST_IF, nif);
NetworkInterface msNetIf = ms.getOption(IP_MULTICAST_IF);
assertEquals(msNetIf, nif);
}
}
@Test(dataProvider = "scenarios" )
public void testSetGetOptionUnbound(InetSocketAddress ignore, NetworkInterface nif)
throws Exception
{
out.println(format("\n\n--- testSetGetOptionUnbound nif=[%s]" , nif));
try (MulticastSocket ms = new MulticastSocket()) {
ms.setOption(IP_MULTICAST_IF, nif);
NetworkInterface msNetIf = ms.getOption(IP_MULTICAST_IF);
assertEquals(msNetIf, nif);
}
}
// -- get without set
@DataProvider(name = "bindAddresses" )
public Object[][] bindAddresses() throws Exception {
return new Object[][] {
{ new InetSocketAddress(InetAddress.getLocalHost(), 0 ) },
{ new InetSocketAddress(InetAddress.getLoopbackAddress(), 0 ) },
};
}
@Test(dataProvider = "bindAddresses" )
public void testGetInterfaceBound(InetSocketAddress bindAddr)
throws Exception
{
out.println(format("\n\n--- testGetInterfaceBound bindAddr=[%s]" , bindAddr));
try (MulticastSocket ms = new MulticastSocket(bindAddr)) {
assertPlaceHolder(ms.getNetworkInterface());
}
}
@Test
public void testGettInterfaceUnbound() throws Exception {
out.println("\n\n--- testGettInterfaceUnbound " );
try (MulticastSocket ms = new MulticastSocket()) {
assertPlaceHolder(ms.getNetworkInterface());
}
}
@Test(dataProvider = "bindAddresses" )
public void testGetOptionBound(InetSocketAddress bindAddr)
throws Exception
{
out.println(format("\n\n--- testGetOptionBound bindAddr=[%s]" , bindAddr));
try (MulticastSocket ms = new MulticastSocket(bindAddr)) {
assertEquals(ms.getOption(IP_MULTICAST_IF), null );
}
}
@Test
public void testGetOptionUnbound() throws Exception {
out.println("\n\n--- testGetOptionUnbound " );
try (MulticastSocket ms = new MulticastSocket()) {
assertEquals(ms.getOption(IP_MULTICAST_IF), null );
}
}
// Asserts that the placeholder NetworkInterface has a single InetAddress
// that represent any local address.
static void assertPlaceHolder(NetworkInterface nif) {
List<InetAddress> addrs = nif.inetAddresses().collect(toList());
assertEquals(addrs.size(), 1 );
assertTrue(addrs.get(0 ).isAnyLocalAddress());
}
}
Messung V0.5 in Prozent C=95 H=87 G=90
¤ Dauer der Verarbeitung: 0.14 Sekunden
(vorverarbeitet am 2026-06-10)
¤
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