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 }