1 /* 2 * Copyright (c) 2013, 2015, 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 // Aix commits on touch, so this test won't work. 25 /* 26 * @test 27 * @key regression 28 * @bug 8012015 29 * @requires !(os.family == "aix") 30 * @summary Make sure reserved (but uncommitted) memory is not accessible 31 * @library /testlibrary /test/lib 32 * @modules java.base/jdk.internal.misc 33 * java.management 34 * @build ReserveMemory 35 * @run main ClassFileInstaller sun.hotspot.WhiteBox 36 * sun.hotspot.WhiteBox$WhiteBoxPermission 37 * @run main ReserveMemory 38 */ 39 40 import jdk.test.lib.*; 41 import jdk.test.lib.Platform; 42 43 import sun.hotspot.WhiteBox; 44 45 public class ReserveMemory { 46 public static void main(String args[]) throws Exception { 47 if (args.length > 0) { 48 WhiteBox.getWhiteBox().readReservedMemory(); 49 50 throw new Exception("Read of reserved/uncommitted memory unexpectedly succeeded, expected crash!"); 51 } 52 53 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 54 "-Xbootclasspath/a:.", 55 "-XX:+UnlockDiagnosticVMOptions", 56 "-XX:+WhiteBoxAPI", 57 "-XX:-TransmitErrorReport", 58 "-XX:-CreateCoredumpOnCrash", 59 "-Xmx32m", 60 "ReserveMemory", 61 "test"); 62 63 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 64 if (Platform.isWindows()) { 65 output.shouldContain("EXCEPTION_ACCESS_VIOLATION"); 66 } else if (Platform.isOSX()) { 67 output.shouldContain("SIGBUS"); 68 } else { 69 output.shouldContain("SIGSEGV"); 70 } 71 } 72 }