/* * Copyright (c) 2024, 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. */ /* * @test * @bug 8322743 * @summary EA incorrectly marks locks for elimination for escaped object which comes from Interpreter in OSR compilation. * @run main/othervm -XX:-TieredCompilation -Xcomp -XX:CompileCommand=compileonly,TestLocksInOSR*::* -XX:CompileCommand=quiet TestLocksInOSR * @run main TestLocksInOSR */ public class TestLocksInOSR { public static void main(String[] args) throws Exception { // Triggers assert(this->held_monitor_count() == this->jni_monitor_count()) failed: held monitor count should be equal to jni: 1 != 0 test1(); // Triggers assert(current->held_monitor_count() == 0) failed: Should not be possible test2(); } static void test1() throws Exception { Thread writeThread = new Thread(new Runnable() { @Override public void run() { for (int i = 0; i < 2; ++i) { synchronized (new Object()) { // Trigger OSR compilation for (int j = 0; j < 100_000; ++j) { // We still have safepoint left in code } } } } }); writeThread.start(); writeThread.join(); } static void test2() { for (int i = 0; i < 2; ++i) { synchronized (new Object()) { // Trigger OSR compilation for (int j = 0; j < 100_000; ++j) { // We still have safepoint left in code } } } } }