1 /* 2 * Copyright (c) 2008, 2014, 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 /* 26 * @test 27 * @bug 6775880 28 * @summary EA +DeoptimizeALot: assert(mon_info->owner()->is_locked(),"object must be locked now") 29 * 30 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -Xbatch -XX:+DoEscapeAnalysis -XX:+DeoptimizeALot 31 * -XX:CompileCommand=exclude,java.lang.AbstractStringBuilder::append 32 * compiler.escapeAnalysis.Test6775880 33 */ 34 35 package compiler.escapeAnalysis; 36 37 public class Test6775880 { 38 39 int cnt; 40 int b[]; 41 String s; 42 43 String test() { 44 String res = ""; 45 for (int i = 0; i < cnt; i++) { 46 if (i != 0) { 47 res = res + "."; 48 } 49 res = res + b[i]; 50 } 51 return res; 52 } 53 54 public static void main(String[] args) { 55 Test6775880 t = new Test6775880(); 56 t.cnt = 3; 57 t.b = new int[3]; 58 t.b[0] = 0; 59 t.b[1] = 1; 60 t.b[2] = 2; 61 int j = 0; 62 t.s = ""; 63 for (int i = 0; i < 10001; i++) { 64 t.s = "c"; 65 t.s = t.test(); 66 } 67 System.out.println("After s=" + t.s); 68 } 69 } 70 71