1 /* 2 * Copyright (c) 2018, Red Hat, Inc. All rights reserved. 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 /test/lib 28 * @run main TestAllocLargerThanHeap 29 */ 30 31 import jdk.test.lib.process.OutputAnalyzer; 32 import jdk.test.lib.process.ProcessTools; 33 34 public class TestAllocLargerThanHeap { 35 36 static final int SIZE = 16*1024*1024; 37 38 static volatile Object sink; 39 40 public static void work() throws Exception { 41 sink = new Object[SIZE]; 42 } 43 44 public static void main(String[] args) throws Exception { 45 if (args.length > 0) { 46 work(); 47 return; 48 } 49 50 { 51 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 52 "-Xmx16m", 53 "-XX:+UnlockExperimentalVMOptions", 54 "-XX:+UseShenandoahGC", 55 TestAllocLargerThanHeap.class.getName(), 56 "test"); 57 58 OutputAnalyzer analyzer = new OutputAnalyzer(pb.start()); 59 analyzer.shouldHaveExitValue(1); 60 analyzer.shouldContain("java.lang.OutOfMemoryError: Java heap space"); 61 } 62 63 { 64 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 65 "-Xmx1g", 66 "-XX:+UnlockExperimentalVMOptions", 67 "-XX:+UseShenandoahGC", 68 TestAllocLargerThanHeap.class.getName(), 69 "test"); 70 71 OutputAnalyzer analyzer = new OutputAnalyzer(pb.start()); 72 analyzer.shouldHaveExitValue(0); 73 analyzer.shouldNotContain("java.lang.OutOfMemoryError: Java heap space"); 74 } 75 } 76 }