98 lines
3.7 KiB
Java
98 lines
3.7 KiB
Java
/*
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* Copyright (c) 2013, 2022, 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.metaspace;
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/**
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* @test CompressedClassSpaceSizeInJmapHeap
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* @bug 8004924
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* @summary Checks that jmap -heap contains the flag CompressedClassSpaceSize
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* @requires vm.hasSA
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* @requires vm.bits == 64 & vm.opt.final.UseCompressedOops == true
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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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* @run main/timeout=240 gc.metaspace.CompressedClassSpaceSizeInJmapHeap
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*/
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import jdk.test.lib.JDKToolLauncher;
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import jdk.test.lib.apps.LingeredApp;
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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 jdk.test.lib.SA.SATestUtils;
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import java.nio.file.*;
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import java.io.File;
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import java.nio.charset.Charset;
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import java.util.List;
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public class CompressedClassSpaceSizeInJmapHeap {
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// Note that on some platforms it may require root privileges to run this test.
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public static void main(String[] args) throws Exception {
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SATestUtils.skipIfCannotAttach(); // throws SkippedException if attach not expected to work.
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LingeredApp theApp = new LingeredApp();
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LingeredApp.startApp(theApp, "-XX:CompressedClassSpaceSize=48m");
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String pid = Long.toString(theApp.getPid());
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JDKToolLauncher jmap = JDKToolLauncher.create("jhsdb")
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.addToolArg("jmap")
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.addToolArg("--heap")
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.addToolArg("--pid")
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.addToolArg(pid);
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ProcessBuilder pb = SATestUtils.createProcessBuilder(jmap);
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File out = new File("CompressedClassSpaceSizeInJmapHeap.stdout.txt");
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pb.redirectOutput(out);
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File err = new File("CompressedClassSpaceSizeInJmapHeap.stderr.txt");
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pb.redirectError(err);
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run(pb);
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OutputAnalyzer output = new OutputAnalyzer(read(out));
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output.shouldContain("CompressedClassSpaceSize = 50331648 (48.0MB)");
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out.delete();
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LingeredApp.stopApp(theApp);
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}
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private static void run(ProcessBuilder pb) throws Exception {
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OutputAnalyzer output = ProcessTools.executeProcess(pb);
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int exitValue = output.getExitValue();
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if (exitValue != 0) {
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throw new Exception("jmap -heap exited with error code: " + exitValue);
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}
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}
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private static String read(File f) throws Exception {
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Path p = f.toPath();
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List<String> lines = Files.readAllLines(p, Charset.defaultCharset());
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StringBuilder sb = new StringBuilder();
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for (String line : lines) {
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sb.append(line).append('\n');
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}
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return sb.toString();
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}
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}
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