1 /* 2 * Copyright (c) 2016, 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 /* 25 * @test 26 * @bug 8146416 27 * @library /test/lib /testlibrary / 28 * @build sun.hotspot.WhiteBox 29 * @run main ClassFileInstaller sun.hotspot.WhiteBox 30 * sun.hotspot.WhiteBox$WhiteBoxPermission 31 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbatch -XX:CompileCommand=exclude,DeoptReallocFailure::main -Xmx100m DeoptReallocFailure 32 * 33 */ 34 import java.lang.reflect.Method; 35 import sun.hotspot.WhiteBox; 36 37 class MemoryChunk { 38 MemoryChunk other; 39 Object[][] array; 40 41 MemoryChunk(MemoryChunk other) { 42 this.other = other; 43 array = new Object[1024 * 256][]; 44 } 45 } 46 47 class NoEscape { 48 long f1; 49 } 50 51 public class DeoptReallocFailure { 52 53 static MemoryChunk root; 54 private static final WhiteBox WB = WhiteBox.getWhiteBox(); 55 56 public static synchronized long test() { 57 NoEscape[] noEscape = new NoEscape[45]; 58 noEscape[0] = new NoEscape(); 59 for (int i=0;i<1024*256;i++) { 60 root.array[i]= new Object[45]; 61 } 62 return noEscape[0].f1; 63 } 64 65 public static void main(String[] args) throws Throwable { 66 67 //Exhaust Memory 68 root = null; 69 try { 70 while (true) { 71 root = new MemoryChunk(root); 72 } 73 } catch (OutOfMemoryError oom) { 74 } 75 76 if (root == null) { 77 return; 78 } 79 80 try { 81 NoEscape dummy = new NoEscape(); 82 Method m = DeoptReallocFailure.class.getMethod("test"); 83 WB.enqueueMethodForCompilation(m, 4); 84 test(); 85 } catch (OutOfMemoryError oom) { 86 root = null; 87 oom.printStackTrace(); 88 } 89 System.out.println("TEST PASSED"); 90 } 91 }