1 /*
 2  * Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
 3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 4  *
 5  * This code is free software; you can redistribute it and/or modify it
 6  * under the terms of the GNU General Public License version 2 only, as
 7  * published by the Free Software Foundation.
 8  *
 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  *
15  * You should have received a copy of the GNU General Public License version
16  * 2 along with this work; if not, write to the Free Software Foundation,
17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18  *
19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20  * or visit www.oracle.com if you need additional information or have any
21  * questions.
22  */
23 
24 import java.net.InetAddress;
25 
26 import org.testng.Assert;
27 import org.testng.annotations.Test;
28 
29 import static impl.WithBootstrapResolverUsageProvider.numberOfGetCalls;
30 
31 /**
32  * @test
33  * @summary Test that InetAddress class properly avoids stack-overflow by
34  * correctly tracking the bootstrap resolver instance when
35  * InetAddressResolverProvider.get method uses InetAddress lookup API.
36  * @library providers/bootstrapUsage
37  * @build bootstrap.usage.provider/impl.WithBootstrapResolverUsageProvider
38  * @run testng/othervm BootstrapResolverUsageTest
39  */
40 
41 public class BootstrapResolverUsageTest {
42 
43     @Test
44     public void testSuccessfulProviderInstantiationTest() throws Exception {
45         System.err.println(InetAddress.getAllByName(InetAddress.getLocalHost().getHostName()));
46         Assert.assertEquals(numberOfGetCalls, 1,
47                 "InetAddressResolverProvider.get was called more than once");
48     }
49 }