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.
  22  */
  23 
  24 package gc.epsilon;
  25 
  26 /**
  27  * @test TestDieWithHeapDump
  28  * @requires vm.gc.Epsilon & !vm.graal.enabled
  29  * @summary Epsilon GC should die on heap exhaustion with error handler attached
  30  * @library /test/lib
  31  * @run driver gc.epsilon.TestDieWithHeapDump
  32  */
  33 
  34 import java.io.*;
  35 import jdk.test.lib.process.OutputAnalyzer;
  36 import jdk.test.lib.process.ProcessTools;
  37 
  38 public class TestDieWithHeapDump {
  39 
  40   public static void passWith(String... args) throws Exception {
  41     ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(args);
  42     OutputAnalyzer out = new OutputAnalyzer(pb.start());
  43     out.shouldNotContain("OutOfMemoryError");
  44     out.shouldHaveExitValue(0);
  45   }
  46 
  47   public static void failWith(String... args) throws Exception {
  48     ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(args);
  49     Process p = pb.start();
  50     OutputAnalyzer out = new OutputAnalyzer(p);
  51     out.shouldContain("OutOfMemoryError");
  52     if (out.getExitValue() == 0) {
  53       throw new IllegalStateException("Should have failed with non-zero exit code");
  54     }
  55     String heapDump = "java_pid" + p.pid() + ".hprof";
  56     if (!new File(heapDump).exists()) {
  57       throw new IllegalStateException("Should have produced the heap dump at: " + heapDump);
  58     }
  59   }
  60 
  61   public static void main(String[] args) throws Exception {
  62     passWith("-Xmx128m",
  63              "-XX:+UnlockExperimentalVMOptions",
  64              "-XX:+UseEpsilonGC",
  65              "-Dcount=1",
  66              "-XX:+HeapDumpOnOutOfMemoryError",
  67              TestDieWithHeapDump.Workload.class.getName());
  68 
  69     failWith("-Xmx128m",
  70              "-XX:+UnlockExperimentalVMOptions",
  71              "-XX:+UseEpsilonGC",
  72              "-XX:+HeapDumpOnOutOfMemoryError",
  73              TestDieWithHeapDump.Workload.class.getName());
  74 
  75     failWith("-Xmx128m",
  76              "-Xint",
  77              "-XX:+UnlockExperimentalVMOptions",
  78              "-XX:+UseEpsilonGC",
  79              "-XX:+HeapDumpOnOutOfMemoryError",
  80              TestDieWithHeapDump.Workload.class.getName());
  81 
  82     failWith("-Xmx128m",
  83              "-Xbatch",
  84              "-Xcomp",
  85              "-XX:+UnlockExperimentalVMOptions",
  86              "-XX:+UseEpsilonGC",
  87              "-XX:+HeapDumpOnOutOfMemoryError",
  88              TestDieWithHeapDump.Workload.class.getName());
  89 
  90     failWith("-Xmx128m",
  91              "-Xbatch",
  92              "-Xcomp",
  93              "-XX:TieredStopAtLevel=1",
  94              "-XX:+UnlockExperimentalVMOptions",
  95              "-XX:+UseEpsilonGC",
  96              "-XX:+HeapDumpOnOutOfMemoryError",
  97              TestDieWithHeapDump.Workload.class.getName());
  98 
  99     failWith("-Xmx128m",
 100              "-Xbatch",
 101              "-Xcomp",
 102              "-XX:-TieredCompilation",
 103              "-XX:+UnlockExperimentalVMOptions",
 104              "-XX:+UseEpsilonGC",
 105              "-XX:+HeapDumpOnOutOfMemoryError",
 106              TestDieWithHeapDump.Workload.class.getName());
 107   }
 108 
 109   public static class Workload {
 110     static int COUNT = Integer.getInteger("count", 1_000_000_000); // ~24 GB allocation
 111 
 112     static volatile Object sink;
 113 
 114     public static void main(String... args) {
 115       for (int c = 0; c < COUNT; c++) {
 116         sink = new Object();
 117       }
 118     }
 119   }
 120 
 121 }