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*
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*
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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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* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
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*/
/* @test
* @ bug 6964714
* @ library / test / lib
* @ run main / othervm - Djava . net . preferIPv4Stack = true IPv4Only
* @ summary Test the networkinterface listing with java . net . preferIPv4Stack = true .
*/
import java.net.*;
import java.util.*;
import jdk.test.lib.net.IPSupport;
public class IPv4Only {
public static void main(String[] args) throws Exception {
if (IPSupport.hasIPv4()) {
System.out.println("Testing IPv4" );
Enumeration<NetworkInterface> nifs = NetworkInterface.getNetworkInterfaces();
while (nifs.hasMoreElements()) {
NetworkInterface nif = nifs.nextElement();
Enumeration<InetAddress> addrs = nif.getInetAddresses();
while (addrs.hasMoreElements()) {
InetAddress hostAddr = addrs.nextElement();
if ( hostAddr instanceof Inet6Address ){
throw new RuntimeException( "NetworkInterfaceV6List failed - found v6 address " + hostAddr.getHostAddress() );
}
}
}
} else {
try {
NetworkInterface.getNetworkInterfaces();
throw new RuntimeException("NetworkInterface.getNetworkInterfaces() should throw SocketException" );
} catch (SocketException expected) {
System.out.println("caught expected exception: " + expected);
}
try {
NetworkInterface.networkInterfaces();
throw new RuntimeException("NetworkInterface.networkInterfaces() should throw SocketException" );
} catch (SocketException expected) {
System.out.println("caught expected exception: " + expected);
}
}
}
}
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