8021775: compiler/8009761/Test8009761.java "Failed: init recursive calls: 51. After deopt 50"
Summary: Reimplemented the test using the Whitebox API to deterministically trigger compilation and deoptimization. Now allowing number of recursive calls to vary by 1.
Reviewed-by: twisti, roland, iignatyev
/** Copyright (c) 2013, 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 TestG1HeapRegionSize * @key gc * @bug 8021879 * @summary Verify that the flag G1HeapRegionSize is updated properly * @run main/othervm -Xmx64m TestG1HeapRegionSize 1048576 * @run main/othervm -XX:G1HeapRegionSize=2m -Xmx64m TestG1HeapRegionSize 2097152 * @run main/othervm -XX:G1HeapRegionSize=3m -Xmx64m TestG1HeapRegionSize 2097152 * @run main/othervm -XX:G1HeapRegionSize=64m -Xmx256m TestG1HeapRegionSize 33554432 */import sun.management.ManagementFactoryHelper;import com.sun.management.HotSpotDiagnosticMXBean;import com.sun.management.VMOption;public class TestG1HeapRegionSize { public static void main(String[] args) { HotSpotDiagnosticMXBean diagnostic = ManagementFactoryHelper.getDiagnosticMXBean(); VMOption option = diagnostic.getVMOption("UseG1GC"); if (option.getValue().equals("false")) { System.out.println("Skipping this test. It is only a G1 test."); return; } String expectedValue = getExpectedValue(args); option = diagnostic.getVMOption("G1HeapRegionSize"); if (!expectedValue.equals(option.getValue())) { throw new RuntimeException("Wrong value for G1HeapRegionSize. Expected " + expectedValue + " but got " + option.getValue()); } } private static String getExpectedValue(String[] args) { if (args.length != 1) { throw new RuntimeException("Wrong number of arguments. Expected 1 but got " + args.length); } return args[0]; }}