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8350546: Several java/net/InetAddress tests fails UnknownHostException

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Backport-of: e5e39718b304de1b916fb1b11cdadd8e7fa738ac
This commit is contained in:
SendaoYan
2025-04-11 00:03:19 +00:00
committed by Vitaly Provodin
parent e45c298753
commit 41cfe4a720
2 changed files with 20 additions and 9 deletions
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15
test/jdk/java/net/InetAddress/IsReachableViaLoopbackTest.java
View File

@@ -1,5 +1,5 @@
/*
* Copyright (c) 2015, 2022, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2015, 2025, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -21,22 +21,24 @@
* questions.
*/
import java.io.*;
import java.net.*;
import java.util.*;
import java.io.IOException;
import java.net.InetAddress;
import java.net.NetworkInterface;
/**
* @test
* @bug 8135305
* @key intermittent
* @library /test/lib
* @summary ensure we can't ping external hosts via loopback if
* @run main IsReachableViaLoopbackTest
*/
public class IsReachableViaLoopbackTest {
public static void main(String[] args) {
try {
InetAddress addr = InetAddress.getByName("localhost");
InetAddress remoteAddr = InetAddress.getByName("bugs.openjdk.org");
InetAddress addr = InetAddress.getLoopbackAddress();
InetAddress remoteAddr = InetAddress.getByName("23.197.138.208"); // use literal address to avoid DNS checks
if (!addr.isReachable(10000))
throw new RuntimeException("Localhost should always be reachable");
NetworkInterface inf = NetworkInterface.getByInetAddress(addr);
@@ -54,7 +56,6 @@ public class IsReachableViaLoopbackTest {
} else {
System.out.println("inf == null");
}
} catch (IOException e) {
throw new RuntimeException("Unexpected exception:" + e);
}

14
test/jdk/java/net/InetAddress/getOriginalHostName.java
View File

@@ -1,5 +1,5 @@
/*
* Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2015, 2025, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -41,7 +41,9 @@ public class getOriginalHostName {
public static void main(String[] args) throws Exception {
final String HOST = "dummyserver.java.net";
InetAddress ia = null;
ia = InetAddress.getByName(HOST);
ia = getInetAddress(HOST);
if (ia != null) testInetAddress(ia, HOST);
ia = InetAddress.getByAddress(HOST, new byte[] { 1, 2, 3, 4});
testInetAddress(ia, HOST);
ia = InetAddress.getByName("255.255.255.0");
testInetAddress(ia, null);
@@ -53,6 +55,14 @@ public class getOriginalHostName {
testInetAddress(ia, ia.getHostName());
}
private static InetAddress getInetAddress(String host) {
try {
return InetAddress.getByName(host);
} catch (java.net.UnknownHostException uhe) {
System.out.println("Skipping " + host + " due to " + uhe);
return null;
}
}
private static void testInetAddress(InetAddress ia, String expected)
throws Exception {