| /* |
| * Copyright (c) 2018, Red Hat, Inc. All rights reserved. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| /** |
| * @test TestAllocLargeObj |
| * @summary Test allocation of small object to result OOM, but not to crash JVM |
| * @key gc |
| * @requires vm.gc.Shenandoah & !vm.graal.enabled |
| * @library /test/lib |
| * @run main TestAllocLargeObj |
| */ |
| |
| import jdk.test.lib.process.OutputAnalyzer; |
| import jdk.test.lib.process.ProcessTools; |
| |
| public class TestAllocLargeObj { |
| |
| static final int SIZE = 1 * 1024 * 1024; |
| static final int COUNT = 16; |
| |
| static volatile Object sink; |
| |
| public static void work() throws Exception { |
| Object[] root = new Object[COUNT]; |
| sink = root; |
| for (int c = 0; c < COUNT; c++) { |
| root[c] = new Object[SIZE]; |
| } |
| } |
| |
| public static void main(String[] args) throws Exception { |
| if (args.length > 0) { |
| work(); |
| return; |
| } |
| |
| { |
| ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( |
| "-Xmx16m", |
| "-XX:+UnlockExperimentalVMOptions", |
| "-XX:+UseShenandoahGC", |
| TestAllocLargeObj.class.getName(), |
| "test"); |
| |
| OutputAnalyzer analyzer = new OutputAnalyzer(pb.start()); |
| analyzer.shouldHaveExitValue(1); |
| analyzer.shouldContain("java.lang.OutOfMemoryError: Java heap space"); |
| } |
| |
| { |
| ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( |
| "-Xmx1g", |
| "-XX:+UnlockExperimentalVMOptions", |
| "-XX:+UseShenandoahGC", |
| TestAllocLargeObj.class.getName(), |
| "test"); |
| |
| OutputAnalyzer analyzer = new OutputAnalyzer(pb.start()); |
| analyzer.shouldHaveExitValue(0); |
| analyzer.shouldNotContain("java.lang.OutOfMemoryError: Java heap space"); |
| } |
| } |
| } |