1 /*
   2  * Copyright (c) 2018 Red Hat, Inc. and/or its affiliates.
   3  *
   4  * This code is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU General Public License version 2 only, as
   6  * published by the Free Software Foundation.
   7  *
   8  * This code is distributed in the hope that it will be useful, but WITHOUT
   9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  11  * version 2 for more details (a copy is included in the LICENSE file that
  12  * accompanied this code).
  13  *
  14  * You should have received a copy of the GNU General Public License version
  15  * 2 along with this work; if not, write to the Free Software Foundation,
  16  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  17  *
  18  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  19  * or visit www.oracle.com if you need additional information or have any
  20  * questions.
  21  *
  22  */
  23 
  24 /**
  25  * @test TestAllocLargerThanHeap
  26  * @summary Test that allocation of the object larger than heap fails predictably
  27  * @library /testlibrary
  28  * @run main TestAllocLargerThanHeap
  29  */
  30 
  31 import com.oracle.java.testlibrary.*;
  32 
  33 public class TestAllocLargerThanHeap {
  34 
  35     static final int SIZE  = 16*1024*1024;
  36 
  37     static volatile Object sink;
  38 
  39     public static void work() throws Exception {
  40         sink = new Object[SIZE];
  41     }
  42 
  43     public static void main(String[] args) throws Exception {
  44         if (args.length > 0) {
  45             work();
  46             return;
  47         }
  48 
  49         {
  50             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  51                                     "-Xmx16m",
  52                                     "-XX:+UseShenandoahGC",
  53                                     TestAllocLargerThanHeap.class.getName(),
  54                                     "test");
  55 
  56             OutputAnalyzer analyzer = new OutputAnalyzer(pb.start());
  57             analyzer.shouldHaveExitValue(1);
  58             analyzer.shouldContain("java.lang.OutOfMemoryError: Java heap space");
  59         }
  60 
  61         {
  62             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  63                                     "-Xmx1g",
  64                                     "-XX:+UseShenandoahGC",
  65                                     TestAllocLargerThanHeap.class.getName(),
  66                                     "test");
  67 
  68             OutputAnalyzer analyzer = new OutputAnalyzer(pb.start());
  69             analyzer.shouldHaveExitValue(0);
  70             analyzer.shouldNotContain("java.lang.OutOfMemoryError: Java heap space");
  71         }
  72     }
  73 }