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