1 /*

     2  * Copyright (c) 2017, Red Hat, Inc. and/or its affiliates.

     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  * @test TestDieDefault

    26  * @summary Epsilon GC should die on heap exhaustion

    27  * @library /test/lib

    28  * @run main TestDieDefault

    29  */

    30 

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

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

    33 

    34 public class TestDieDefault extends AbstractEpsilonTest {

    35 

    36   public static void passWith(String... args) throws Exception {

    37     ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(args);

    38     OutputAnalyzer out = new OutputAnalyzer(pb.start());

    39     out.shouldNotContain("OutOfMemoryError");

    40     out.shouldHaveExitValue(0);

    41   }

    42 

    43   public static void failWith(String... args) throws Exception {

    44     ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(args);

    45     OutputAnalyzer out = new OutputAnalyzer(pb.start());

    46     out.shouldContain("OutOfMemoryError");

    47     if (out.getExitValue() == 0) {

    48       throw new IllegalStateException("Should have failed with non-zero exit code");

    49     }

    50   }

    51 

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

    53     if (!isEpsilonEnabled()) return;

    54 

    55     passWith("-Xmx128m",

    56              "-XX:+UnlockExperimentalVMOptions",

    57              "-XX:+UseEpsilonGC",

    58              "-Dcount=1",

    59              TestDieDefault.Workload.class.getName());

    60 

    61     failWith("-Xmx128m",

    62              "-XX:+UnlockExperimentalVMOptions",

    63              "-XX:+UseEpsilonGC",

    64              TestDieDefault.Workload.class.getName());

    65 

    66     failWith("-Xmx128m",

    67              "-Xint",

    68              "-XX:+UnlockExperimentalVMOptions",

    69              "-XX:+UseEpsilonGC",

    70              TestDieDefault.Workload.class.getName());

    71 

    72     failWith("-Xmx128m",

    73              "-Xbatch",

    74              "-Xcomp",

    75              "-XX:+UnlockExperimentalVMOptions",

    76              "-XX:+UseEpsilonGC",

    77              TestDieDefault.Workload.class.getName());

    78 

    79     failWith("-Xmx128m",

    80              "-Xbatch",

    81              "-Xcomp",

    82              "-XX:TieredStopAtLevel=1",

    83              "-XX:+UnlockExperimentalVMOptions",

    84              "-XX:+UseEpsilonGC",

    85              TestDieDefault.Workload.class.getName());

    86 

    87     failWith("-Xmx128m",

    88              "-Xbatch",

    89              "-Xcomp",

    90              "-XX:TieredStopAtLevel=4",

    91              "-XX:+UnlockExperimentalVMOptions",

    92              "-XX:+UseEpsilonGC",

    93              TestDieDefault.Workload.class.getName());

    94   }

    95 

    96   public static class Workload {

    97     static int COUNT = Integer.getInteger("count", 1_000_000_000); // ~24 GB allocation

    98 

    99     static volatile Object sink;

   100 

   101     public static void main(String... args) {

   102       for (int c = 0; c < COUNT; c++) {

   103         sink = new Object();

   104       }

   105     }

   106   }

   107 

   108 }