1 /*
   2  * Copyright (c) 2017, 2018, Red Hat, Inc. 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.
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  23 
  24 /**
  25  * @test TestDieWithHeapDump
  26  * @key gc
  27  * @requires vm.gc.Epsilon
  28  * @summary Epsilon GC should die on heap exhaustion with error handler attached
  29  * @library /test/lib
  30  * @run main TestDieWithHeapDump
  31  */
  32 
  33 import java.io.*;
  34 import jdk.test.lib.process.OutputAnalyzer;
  35 import jdk.test.lib.process.ProcessTools;
  36 
  37 public class TestDieWithHeapDump {
  38 
  39   public static void passWith(String... args) throws Exception {
  40     ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(args);
  41     OutputAnalyzer out = new OutputAnalyzer(pb.start());
  42     out.shouldNotContain("OutOfMemoryError");
  43     out.shouldHaveExitValue(0);
  44   }
  45 
  46   public static void failWith(String... args) throws Exception {
  47     ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(args);
  48     Process p = pb.start();
  49     OutputAnalyzer out = new OutputAnalyzer(p);
  50     out.shouldContain("OutOfMemoryError");
  51     if (out.getExitValue() == 0) {
  52       throw new IllegalStateException("Should have failed with non-zero exit code");
  53     }
  54     String heapDump = "java_pid" + p.pid() + ".hprof";
  55     if (!new File(heapDump).exists()) {
  56       throw new IllegalStateException("Should have produced the heap dump at: " + heapDump);
  57     }
  58   }
  59 
  60   public static void main(String[] args) throws Exception {
  61     passWith("-Xmx128m",
  62              "-XX:+UnlockExperimentalVMOptions",
  63              "-XX:+UseEpsilonGC",
  64              "-Dcount=1",
  65              "-XX:+HeapDumpOnOutOfMemoryError",
  66              TestDieWithHeapDump.Workload.class.getName());
  67 
  68     failWith("-Xmx128m",
  69              "-XX:+UnlockExperimentalVMOptions",
  70              "-XX:+UseEpsilonGC",
  71              "-XX:+HeapDumpOnOutOfMemoryError",
  72              TestDieWithHeapDump.Workload.class.getName());
  73 
  74     failWith("-Xmx128m",
  75              "-Xint",
  76              "-XX:+UnlockExperimentalVMOptions",
  77              "-XX:+UseEpsilonGC",
  78              "-XX:+HeapDumpOnOutOfMemoryError",
  79              TestDieWithHeapDump.Workload.class.getName());
  80 
  81     failWith("-Xmx128m",
  82              "-Xbatch",
  83              "-Xcomp",
  84              "-XX:+UnlockExperimentalVMOptions",
  85              "-XX:+UseEpsilonGC",
  86              "-XX:+HeapDumpOnOutOfMemoryError",
  87              TestDieWithHeapDump.Workload.class.getName());
  88 
  89     failWith("-Xmx128m",
  90              "-Xbatch",
  91              "-Xcomp",
  92              "-XX:TieredStopAtLevel=1",
  93              "-XX:+UnlockExperimentalVMOptions",
  94              "-XX:+UseEpsilonGC",
  95              "-XX:+HeapDumpOnOutOfMemoryError",
  96              TestDieWithHeapDump.Workload.class.getName());
  97 
  98     failWith("-Xmx128m",
  99              "-Xbatch",
 100              "-Xcomp",
 101              "-XX:TieredStopAtLevel=4",
 102              "-XX:+UnlockExperimentalVMOptions",
 103              "-XX:+UseEpsilonGC",
 104              "-XX:+HeapDumpOnOutOfMemoryError",
 105              TestDieWithHeapDump.Workload.class.getName());
 106   }
 107 
 108   public static class Workload {
 109     static int COUNT = Integer.getInteger("count", 1_000_000_000); // ~24 GB allocation
 110 
 111     static volatile Object sink;
 112 
 113     public static void main(String... args) {
 114       for (int c = 0; c < COUNT; c++) {
 115         sink = new Object();
 116       }
 117     }
 118   }
 119 
 120 }