1 /*

     2  * Copyright (c) 2018, 2019, 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  *

    23  */

    24 

    25 /*

    26  * @test

    27  * @summary Test dumping with limited metaspace with loading of JVMCI related classes.

    28  *          VM should not crash but CDS dump will abort upon failure in allocating metaspace.

    29  * @requires vm.cds & vm.graal.enabled & vm.compMode == "Xmixed"

    30  * @library /test/lib

    31  * @modules java.base/jdk.internal.misc

    32  *          java.management

    33  *          jdk.jartool/sun.tools.jar

    34  * @build UseAppCDS_Test

    35  * @run driver ClassFileInstaller -jar test.jar UseAppCDS_Test

    36  * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI

    37  *      -XX:+TieredCompilation -XX:+UseJVMCICompiler -Djvmci.Compiler=graal

    38  *      GraalWithLimitedMetaspace

    39  */

    40 

    41 import jdk.test.lib.cds.CDSTestUtils;

    42 import jdk.test.lib.process.OutputAnalyzer;

    43 import jdk.test.lib.process.ProcessTools;

    44 

    45 import java.util.ArrayList;

    46 import java.util.List;

    47 import java.io.*;

    48 

    49 public class GraalWithLimitedMetaspace {

    50 

    51     // Class UseAppCDS_Test is loaded by the App loader

    52 

    53     static final String TEST_OUT = "UseAppCDS_Test.main--executed";

    54 

    55     private static final String TESTJAR = "./test.jar";

    56     private static final String TESTNAME = "UseAppCDS_Test";

    57     private static final String TESTCLASS = TESTNAME + ".class";

    58 

    59     private static final String CLASSLIST_FILE = "./GraalWithLimitedMetaspace.classlist";

    60     private static final String ARCHIVE_FILE = "./GraalWithLimitedMetaspace.jsa";

    61     private static final String BOOTCLASS = "java.lang.Class";

    62 

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

    64 

    65         // dump loaded classes into a classlist file

    66         dumpLoadedClasses(new String[] { BOOTCLASS, TESTNAME });

    67 

    68 

    69         // create an archive using the classlist

    70         dumpArchive();

    71 

    72     }

    73 

    74     public static List<String> toClassNames(String filename) throws IOException {

    75         ArrayList<String> classes = new ArrayList<>();

    76         try (BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(filename)))) {

    77             for (; ; ) {

    78                 String line = br.readLine();

    79                 if (line == null) {

    80                     break;

    81                 }

    82                 classes.add(line.replaceAll("/", "."));

    83             }

    84         }

    85         return classes;

    86     }

    87 

    88     static void dumpLoadedClasses(String[] expectedClasses) throws Exception {

    89         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(true,

    90             "-XX:DumpLoadedClassList=" + CLASSLIST_FILE,

    91             // trigger JVMCI runtime init so that JVMCI classes will be

    92             // included in the classlist

    93             "-XX:+UnlockExperimentalVMOptions",

    94             "-XX:+EnableJVMCI",

    95             "-XX:+EagerJVMCI",

    96             "-cp",

    97             TESTJAR,

    98             TESTNAME,

    99             TEST_OUT);

   100 

   101         OutputAnalyzer output = TestCommon.executeAndLog(pb, "dump-loaded-classes")

   102             .shouldHaveExitValue(0)

   103             .shouldContain(TEST_OUT);

   104 

   105         List<String> dumpedClasses = toClassNames(CLASSLIST_FILE);

   106 

   107         for (String clazz : expectedClasses) {

   108             if (!dumpedClasses.contains(clazz)) {

   109                 throw new RuntimeException(clazz + " missing in " +

   110                                            CLASSLIST_FILE);

   111             }

   112         }

   113     }

   114 

   115     static void dumpArchive() throws Exception {

   116         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(true,

   117             "-cp",

   118             TESTJAR,

   119             "-XX:SharedClassListFile=" + CLASSLIST_FILE,

   120             "-XX:SharedArchiveFile=" + ARCHIVE_FILE,

   121             "-Xlog:cds",

   122             "-Xshare:dump",

   123             "-XX:MetaspaceSize=12M",

   124             "-XX:MaxMetaspaceSize=12M");

   125 

   126         OutputAnalyzer output = TestCommon.executeAndLog(pb, "dump-archive");

   127         int exitValue = output.getExitValue();

   128         if (exitValue == 1) {

   129             output.shouldContain("Failed allocating metaspace object type");

   130         } else if (exitValue == 0) {

   131             output.shouldContain("Loading classes to share");

   132         } else {

   133             throw new RuntimeException("Unexpected exit value " + exitValue);

   134         }

   135     }

   136 }