| /* |
| * Copyright (c) 2008, 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 6628576 |
| * @modules java.base/java.net:open |
| * @summary InterfaceAddress.equals() NPE when broadcast field == null |
| */ |
| |
| import java.net.InterfaceAddress; |
| import java.net.InetAddress; |
| import java.net.UnknownHostException; |
| import java.lang.reflect.Constructor; |
| import java.lang.reflect.Field; |
| import java.lang.reflect.InvocationTargetException; |
| |
| public class Equals |
| { |
| public static void main(String[] args) { |
| InterfaceAddress ia1; |
| InterfaceAddress ia2; |
| InetAddress loopbackAddr = InetAddress.getLoopbackAddress(); |
| InetAddress broadcast1 = null; |
| InetAddress broadcast2 = null; |
| |
| try { |
| broadcast1 = InetAddress.getByName("255.255.255.0"); |
| broadcast2 = InetAddress.getByName("255.255.0.0"); |
| } catch (UnknownHostException e) { |
| e.printStackTrace(); |
| } |
| |
| ia1 = createInterfaceAddress(loopbackAddr, (InetAddress) null, (short)45); |
| ia2 = createInterfaceAddress(loopbackAddr, (InetAddress) null, (short)45); |
| |
| compare(ia1, ia2, true); |
| |
| ia2 = createInterfaceAddress(loopbackAddr, broadcast1, (short)45); |
| compare(ia1, ia2, false); |
| |
| ia2 = createInterfaceAddress((InetAddress)null, broadcast1, (short)45); |
| compare(ia1, ia2, false); |
| |
| ia1 = createInterfaceAddress(loopbackAddr, broadcast2, (short)45); |
| ia2 = createInterfaceAddress(loopbackAddr, broadcast2, (short)45); |
| compare(ia1, ia2, true); |
| |
| ia1.equals(null); |
| } |
| |
| static void compare(InterfaceAddress ia1, InterfaceAddress ia2, boolean equal) { |
| if (ia1.equals(ia2) != equal) |
| throw new RuntimeException("Failed: " + ia1 + " not equals to " + ia2); |
| |
| if (ia2.equals(ia1) != equal) |
| throw new RuntimeException("Failed: " + ia2 + " not equals to " + ia1); |
| } |
| |
| /** |
| * Returns an InterfaceAddress instance with its fields set the the values |
| * specificed. |
| */ |
| static InterfaceAddress createInterfaceAddress( |
| InetAddress address, InetAddress broadcast, short prefixlength) { |
| try { |
| Class<InterfaceAddress> IAClass = InterfaceAddress.class; |
| InterfaceAddress ia; |
| Constructor<InterfaceAddress> ctr = IAClass.getDeclaredConstructor(); |
| ctr.setAccessible(true); |
| |
| Field addressField = IAClass.getDeclaredField("address"); |
| addressField.setAccessible(true); |
| |
| Field broadcastField = IAClass.getDeclaredField("broadcast"); |
| broadcastField.setAccessible(true); |
| |
| Field maskLengthField = IAClass.getDeclaredField("maskLength"); |
| maskLengthField.setAccessible(true); |
| |
| ia = ctr.newInstance(); |
| addressField.set(ia, address); |
| broadcastField.set(ia, broadcast); |
| maskLengthField.setShort(ia, prefixlength); |
| |
| return ia; |
| } catch (NoSuchFieldException nsfe) { |
| nsfe.printStackTrace(); |
| } catch (NoSuchMethodException e) { |
| e.printStackTrace(); |
| } catch (InstantiationException ie) { |
| ie.printStackTrace(); |
| } catch (IllegalAccessException iae) { |
| iae.printStackTrace(); |
| } catch (InvocationTargetException ite) { |
| ite.printStackTrace(); |
| } |
| |
| return null; |
| } |
| } |