| /* |
| * Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| import java.lang.ref.WeakReference; |
| |
| /* |
| * @test |
| * @bug 8260473 |
| * @summary Handle leak might cause object not collected as expected |
| * |
| * @run main/othervm -XX:-Inline -XX:-TieredCompilation -XX:CompileCommand=compileonly,UncommonTrapLeak.foo |
| * -XX:CompileThreshold=100 -XX:-BackgroundCompilation UncommonTrapLeak |
| * |
| * @author Hui Shi |
| */ |
| public class UncommonTrapLeak { |
| static WeakReference<Object> ref = null; |
| static int val = 0; |
| public static void main(String args[]) { |
| for (int i = 0; i < 300; i++) { |
| val++; |
| foo(i); |
| System.gc(); |
| if (ref.get() != null) { |
| throw new RuntimeException("Failed: referent not collected after trap " + ref.get()); |
| } |
| if (i % 100 == 0) { |
| System.out.println(i); |
| } |
| } |
| } |
| |
| static void foo(int i) { |
| Object o = new Object(); |
| ref = new WeakReference<Object>(o); |
| if (val == 200) { |
| // trigger Deoptimization::uncommon_trap |
| if (o instanceof UncommonTrapLeak) { |
| } |
| } |
| } |
| } |
| |
