1 /* 2 * Copyright (c) 2013, 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 8020215 27 * @summary Different execution plan when using JIT vs interpreter 28 * 29 * @run main compiler.escapeAnalysis.Test8020215 30 */ 31 32 package compiler.escapeAnalysis; 33 34 import java.util.ArrayList; 35 import java.util.List; 36 37 public class Test8020215 { 38 public static class NamedObject { 39 public int id; 40 public String name; 41 public NamedObject(int id, String name) { 42 this.id = id; 43 this.name = name; 44 } 45 } 46 47 public static class NamedObjectList { 48 public List<NamedObject> namedObjectList = new ArrayList<NamedObject>(); 49 50 public NamedObject getBest(int id) { 51 NamedObject bestObject = null; 52 for (NamedObject o : namedObjectList) { 53 bestObject = id==o.id ? getBetter(bestObject, o) : bestObject; 54 } 55 return (bestObject != null) ? bestObject : null; 56 } 57 58 private static NamedObject getBetter(NamedObject p1, NamedObject p2) { 59 return (p1 == null) ? p2 : (p2 == null) ? p1 : (p2.name.compareTo(p1.name) >= 0) ? p2 : p1; 60 } 61 } 62 63 static void test(NamedObjectList b, int i) { 64 NamedObject x = b.getBest(2); 65 // test 66 if (x == null) { 67 throw new RuntimeException("x should never be null here! (i=" + i + ")"); 68 } 69 } 70 71 public static void main(String[] args) { 72 // setup 73 NamedObjectList b = new NamedObjectList(); 74 for (int i = 0; i < 10000; i++) { 75 b.namedObjectList.add(new NamedObject(1, "2012-12-31")); 76 } 77 b.namedObjectList.add(new NamedObject(2, "2013-12-31")); 78 79 // execution 80 for (int i = 0; i < 12000; i++) { 81 test(b, i); 82 } 83 System.out.println("PASSED"); 84 } 85 }