95 lines
3.2 KiB
Java
95 lines
3.2 KiB
Java
/*
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* Copyright (c) 2014, 2023, 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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package gc.logging;
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/*
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* @test TestGCId
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* @bug 8043607
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* @summary Ensure that the GCId is logged
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* @library /test/lib
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* @modules java.base/jdk.internal.misc
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* java.management
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* @build jdk.test.whitebox.WhiteBox
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* @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
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* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI gc.logging.TestGCId
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*/
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import jdk.test.lib.process.OutputAnalyzer;
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import jdk.test.lib.process.ProcessTools;
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import jtreg.SkippedException;
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import jdk.test.whitebox.gc.GC;
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public class TestGCId {
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public static void main(String[] args) throws Exception {
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boolean noneGCSupported = true;
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if (GC.Parallel.isSupported()) {
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noneGCSupported = false;
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testGCId("UseParallelGC");
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}
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if (GC.G1.isSupported()) {
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noneGCSupported = false;
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testGCId("UseG1GC");
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}
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if (GC.Serial.isSupported()) {
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noneGCSupported = false;
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testGCId("UseSerialGC");
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}
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if (GC.Shenandoah.isSupported()) {
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noneGCSupported = false;
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testGCId("UseShenandoahGC");
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}
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if (noneGCSupported) {
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throw new SkippedException("Skipping test because none of Parallel/G1/Serial/Shenandoah is supported.");
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}
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}
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private static void verifyContainsGCIDs(OutputAnalyzer output) {
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output.shouldMatch("\\[.*\\]\\[.*\\]\\[.*\\] GC\\(0\\) ");
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output.shouldMatch("\\[.*\\]\\[.*\\]\\[.*\\] GC\\(1\\) ");
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output.shouldHaveExitValue(0);
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}
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private static void testGCId(String gcFlag) throws Exception {
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OutputAnalyzer output =
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ProcessTools.executeLimitedTestJava("-XX:+UnlockExperimentalVMOptions", "-XX:+" + gcFlag, "-Xlog:gc", "-Xmx10M", GCTest.class.getName());
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verifyContainsGCIDs(output);
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}
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static class GCTest {
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private static byte[] garbage;
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public static void main(String [] args) {
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System.out.println("Creating garbage");
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// create 128MB of garbage. This should result in at least one GC
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for (int i = 0; i < 1024; i++) {
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garbage = new byte[128 * 1024];
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}
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// do a system gc to get one more gc
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System.gc();
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System.out.println("Done");
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}
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}
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}
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