jdk8-mips64-public/hotspot: test/gc/metaspace/ClassMetaspaceSizeInJmapHeap.java@1cdbd42c3e49

     1 /*

     2  * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    24 /*

    25  * @test ClassMetaspaceSizeInJmapHeap

    26  * @bug 8004924

    27  * @summary Checks that jmap -heap contains the flag ClassMetaspaceSize

    28  * @library /testlibrary

    29  * @run main/othervm -XX:ClassMetaspaceSize=50m ClassMetaspaceSizeInJmapHeap

    30  */

    32 import com.oracle.java.testlibrary.*;

    33 import java.nio.file.*;

    34 import java.io.File;

    35 import java.nio.charset.Charset;

    36 import java.util.List;

    38 public class ClassMetaspaceSizeInJmapHeap {

    39     public static void main(String[] args) throws Exception {

    40         String pid = Integer.toString(ProcessTools.getProcessId());

    42         JDKToolLauncher jmap = JDKToolLauncher.create("jmap")

    43                                               .addToolArg("-heap")

    44                                               .addToolArg(pid);

    45         ProcessBuilder pb = new ProcessBuilder(jmap.getCommand());

    47         File out = new File("ClassMetaspaceSizeInJmapHeap.stdout.txt");

    48         pb.redirectOutput(out);

    50         File err = new File("ClassMetaspaceSizeInJmapHeap.stderr.txt");

    51         pb.redirectError(err);

    53         run(pb);

    55         OutputAnalyzer output = new OutputAnalyzer(read(out));

    56         output.shouldContain("ClassMetaspaceSize = 52428800 (50.0MB)");

    57         out.delete();

    58     }

    60     private static void run(ProcessBuilder pb) throws Exception {

    61         Process p = pb.start();

    62         p.waitFor();

    63         int exitValue = p.exitValue();

    64         if (exitValue != 0) {

    65             throw new Exception("jmap -heap exited with error code: " + exitValue);

    66         }

    67     }

    69     private static String read(File f) throws Exception {

    70         Path p = f.toPath();

    71         List<String> lines = Files.readAllLines(p, Charset.defaultCharset());

    73         StringBuilder sb = new StringBuilder();

    74         for (String line : lines) {

    75             sb.append(line).append('\n');

    76         }

    77         return sb.toString();

    78     }

    79 }

Mercurial > jdk8-mips64-public > hotspot / file revision