1 /*
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3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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9  * This code is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12  * version 2 for more details (a copy is included in the LICENSE file that
13  * accompanied this code).
14  *
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17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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22  */
23 package test.java.net.InetAddress;
24 
25 /* @test
26  * @bug 8134577
27  * @summary Test the internal NameService implementation which is enabled via
28  *          the system property jdk.net.hosts.file. This property specifies
29  *          a file name that contains address host mappings, similar to those in
30  *          /etc/hosts file. TestHosts-II file doesn't exist, so a UHE should be
31  *          thrown
32  * @run main/othervm -Djdk.net.hosts.file=TestHosts-II -Dsun.net.inetaddr.ttl=0
33  *          InternalNameServiceWithNoHostsFileTest
34  */
35 
36 import java.net.InetAddress;
37 import java.net.UnknownHostException;
38 
39 import org.testng.annotations.Test;
40 import static org.testng.Assert.fail;
41 
42 public class InternalNameServiceWithNoHostsFileTest {
43     @Test
testINSwithoutHosts()44     public void testINSwithoutHosts() throws Exception {
45         InetAddress testAddress = null;
46 
47         try {
48             testAddress = InetAddress.getByName("host.sample-domain");
49             fail("UnknownHostException expected");
50         } catch (UnknownHostException uhEx) {
51         }
52     }
53 }