InternalNameServiceWithNoHostsFileTest.java

/*
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/* @test
 * @bug 8134577
 * @summary Test the internal NameService implementation which is enabled via
 *          the system property jdk.net.hosts.file. This property specifies
 *          a file name that contains address host mappings, similar to those in
 *          /etc/hosts file. TestHosts-II file doesn't exist, so a UHE should be
 *          thrown
 * @run main/othervm -Djdk.net.hosts.file=TestHosts-II -Dsun.net.inetaddr.ttl=0
 *          InternalNameServiceWithNoHostsFileTest
 */



import java.net.InetAddress;
import java.net.UnknownHostException;


public class InternalNameServiceWithNoHostsFileTest {
    public static void main(String args[]) throws Exception {
        InetAddress testAddress = null;

        try {
            testAddress = InetAddress.getByName("host.sample-domain");
            throw new RuntimeException ("UnknownHostException expected");
        } catch (UnknownHostException uhEx) {
            System.out.println("UHE caught as expected == " + uhEx.getMessage());
        }
    }
}