test/jdk/java/net/InetAddress/B5087907.java
changeset 47216 71c04702a3d5
parent 5506 202f599c92aa
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/java/net/InetAddress/B5087907.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2004, 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
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * 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).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/**
+ * @test
+ * @bug 5087907
+ * @summary  InetAddress.getAllByName does not obey setting of java.net.preferIPv6Addresses
+ * @run main/othervm -Djava.net.preferIPv6Addresses=false B5087907
+ * @run main/othervm -Djava.net.preferIPv6Addresses=true B5087907
+ * @run main/othervm B5087907
+ */
+
+import java.net.*;
+
+public class B5087907 {
+
+    public static void main(String args[]) {
+        InetAddress lh = null;
+        InetAddress addrs[] = null;
+        try {
+            lh = InetAddress.getByName("localhost");
+            addrs = InetAddress.getAllByName("localhost");
+        } catch (UnknownHostException e) {
+            System.out.println ("Cant lookup localhost. cant run test");
+            return;
+        }
+
+        boolean hasIPv4Address = false;
+        boolean hasIPv6Address = false;
+        for (InetAddress addr: addrs) {
+            if (addr instanceof Inet4Address) {
+                hasIPv4Address = true;
+            }
+            if (addr instanceof Inet6Address) {
+                hasIPv6Address = true;
+            }
+            if (hasIPv4Address && hasIPv6Address) {
+                break;
+            }
+        }
+
+        String prop = System.getProperty("java.net.preferIPv6Addresses");
+        boolean preferIPv6Addresses = (prop == null) ? false : prop.equals("true");
+
+        System.out.println("java.net.preferIPv6Addresses: " + preferIPv6Addresses);
+        System.out.println("localhost resolves to:");
+        for (InetAddress addr: addrs) {
+            System.out.println("  " + addr);
+        }
+        System.out.println("InetAddres.getByName returned: " + lh);
+
+        boolean failed = false;
+        if (preferIPv6Addresses && hasIPv6Address) {
+            if (!(lh instanceof Inet6Address)) failed = true;
+        }
+        if (!preferIPv6Addresses && hasIPv4Address) {
+            if (!(lh instanceof Inet4Address)) failed = true;
+        }
+        if (failed) {
+            throw new RuntimeException("Test failed!");
+        }
+    }
+
+}