144 lines
4.5 KiB
Java
144 lines
4.5 KiB
Java
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/*
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* Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
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* Copyright (c) 2018, Google 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.io.File;
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import java.net.URL;
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import java.net.URLClassLoader;
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import java.util.List;
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import java.util.function.Predicate;
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import java.util.regex.Pattern;
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import java.util.regex.Matcher;
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import jdk.test.lib.Asserts;
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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 sun.hotspot.WhiteBox;
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/*
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* @test TestMetaSpaceLog
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* @bug 8211123
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* @summary Ensure that the Metaspace is updated in the log
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* @requires vm.gc=="null"
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* @key gc
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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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*
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* @compile TestMetaSpaceLog.java
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* @run driver ClassFileInstaller sun.hotspot.WhiteBox
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* @run main TestMetaSpaceLog
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*/
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public class TestMetaSpaceLog {
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private static Pattern metaSpaceRegexp;
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static {
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// Do this once here.
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metaSpaceRegexp = Pattern.compile(".*Metaspace: ([0-9]+).*->([0-9]+).*");
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}
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public static void main(String[] args) throws Exception {
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testMetaSpaceUpdate("UseParallelGC");
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testMetaSpaceUpdate("UseG1GC");
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testMetaSpaceUpdate("UseConcMarkSweepGC");
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testMetaSpaceUpdate("UseSerialGC");
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}
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private static void verifyContainsMetaSpaceUpdate(OutputAnalyzer output) {
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Predicate<String> collectedMetaSpace = line -> check(line);
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// At least one metaspace line from GC should show GC being collected.
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boolean foundCollectedMetaSpace = output.asLines().stream()
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.filter(s -> s.contains("[gc,metaspace"))
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.anyMatch(TestMetaSpaceLog::check);
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Asserts.assertTrue(foundCollectedMetaSpace);
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}
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private static boolean check(String line) {
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Matcher m = metaSpaceRegexp.matcher(line);
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Asserts.assertTrue(m.matches(), "Unexpected line for metaspace logging: " + line);
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long before = Long.parseLong(m.group(1));
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long after = Long.parseLong(m.group(2));
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return before > after;
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}
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private static void testMetaSpaceUpdate(String gcFlag) throws Exception {
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// Propagate test.src for the jar file.
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String testSrc= "-Dtest.src=" + System.getProperty("test.src", ".");
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System.err.println("Testing with GC Flag: " + gcFlag);
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ProcessBuilder pb =
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ProcessTools.createJavaProcessBuilder(
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"-XX:+" + gcFlag,
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"-Xlog:gc*",
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"-Xbootclasspath/a:.",
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"-XX:+UnlockDiagnosticVMOptions",
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"-XX:+WhiteBoxAPI",
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"-Xmx1000M",
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"-Xms1000M",
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testSrc, StressMetaSpace.class.getName());
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OutputAnalyzer output = null;
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try {
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output = new OutputAnalyzer(pb.start());
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verifyContainsMetaSpaceUpdate(output);
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} catch (Exception e) {
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// For error diagnosis: print and throw.
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e.printStackTrace();
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output.reportDiagnosticSummary();
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throw e;
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}
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}
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static class StressMetaSpace {
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private static URL[] urls = new URL[1];
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static {
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try {
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File jarFile = new File(System.getProperty("test.src") + "/testcases.jar");
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urls[0] = jarFile.toURI().toURL();
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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public static void main(String args[]) {
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WhiteBox wb = WhiteBox.getWhiteBox();
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for(int i = 0; i < 10000; i++) {
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loadClass(wb);
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}
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wb.fullGC();
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}
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public static void loadClass(WhiteBox wb) {
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try {
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URLClassLoader ucl = new URLClassLoader(urls);
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Class.forName("case00", false, ucl);
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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}
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}
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