1/* 2 * Copyright (c) 2010, 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 7002666 27 * @summary eclipse CDT projects crash with compressed oops 28 * 29 * @run main/othervm -Xbatch 30 * -XX:CompileCommand=compileonly,compiler.c2.Test7002666::test 31 * -XX:CompileCommand=compileonly,java.lang.reflect.Array::* 32 * compiler.c2.Test7002666 33 */ 34 35package compiler.c2; 36/* 37 * This will only reliably fail with a fastdebug build since it relies 38 * on seeing garbage in the heap to die. It could be made more 39 * reliable in product mode but that would require greatly increasing 40 * the runtime. 41 */ 42 43public class Test7002666 { 44 public static void main(String[] args) { 45 for (int i = 0; i < 25000; i++) { 46 Object[] a = test(Test7002666.class, new Test7002666()); 47 if (a[0] != null) { 48 // The element should be null but if it's not then 49 // we've hit the bug. This will most likely crash but 50 // at least throw an exception. 51 System.err.println(a[0]); 52 throw new InternalError(a[0].toString()); 53 54 } 55 } 56 } 57 public static Object[] test(Class c, Object o) { 58 // allocate an array small enough to be trigger the bug 59 Object[] a = (Object[])java.lang.reflect.Array.newInstance(c, 1); 60 return a; 61 } 62} 63