| /* |
| * Copyright (c) 2013, 2016, 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 CompressedClassSpaceSizeInJmapHeap |
| * @bug 8004924 |
| * @summary Checks that jmap -heap contains the flag CompressedClassSpaceSize |
| * @library /test/lib |
| * @modules java.base/jdk.internal.misc |
| * java.management |
| * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:CompressedClassSpaceSize=50m CompressedClassSpaceSizeInJmapHeap |
| */ |
| |
| import jdk.test.lib.JDKToolLauncher; |
| import jdk.test.lib.Platform; |
| import jdk.test.lib.process.OutputAnalyzer; |
| import jdk.test.lib.process.ProcessTools; |
| import java.nio.file.*; |
| import java.io.File; |
| import java.nio.charset.Charset; |
| import java.util.List; |
| |
| public class CompressedClassSpaceSizeInJmapHeap { |
| // Note that on some platforms it may require root privileges to run this test. |
| public static void main(String[] args) throws Exception { |
| if (!Platform.is64bit()) { |
| // Compressed Class Space is only available on 64-bit JVMs |
| return; |
| } |
| if (!Platform.shouldSAAttach()) { |
| System.out.println("SA attach not expected to work - test skipped."); |
| return; |
| } |
| |
| String pid = Long.toString(ProcessTools.getProcessId()); |
| |
| JDKToolLauncher jmap = JDKToolLauncher.create("jhsdb") |
| .addToolArg("jmap") |
| .addToolArg("--heap") |
| .addToolArg("--pid") |
| .addToolArg(pid); |
| ProcessBuilder pb = new ProcessBuilder(jmap.getCommand()); |
| |
| File out = new File("CompressedClassSpaceSizeInJmapHeap.stdout.txt"); |
| pb.redirectOutput(out); |
| |
| File err = new File("CompressedClassSpaceSizeInJmapHeap.stderr.txt"); |
| pb.redirectError(err); |
| |
| run(pb); |
| |
| OutputAnalyzer output = new OutputAnalyzer(read(out)); |
| output.shouldContain("CompressedClassSpaceSize = 52428800 (50.0MB)"); |
| out.delete(); |
| } |
| |
| private static void run(ProcessBuilder pb) throws Exception { |
| Process p = pb.start(); |
| p.waitFor(); |
| int exitValue = p.exitValue(); |
| if (exitValue != 0) { |
| throw new Exception("jmap -heap exited with error code: " + exitValue); |
| } |
| } |
| |
| private static String read(File f) throws Exception { |
| Path p = f.toPath(); |
| List<String> lines = Files.readAllLines(p, Charset.defaultCharset()); |
| |
| StringBuilder sb = new StringBuilder(); |
| for (String line : lines) { |
| sb.append(line).append('\n'); |
| } |
| return sb.toString(); |
| } |
| } |