--- /dev/null 2018-06-10 19:57:01.244702788 +0200 +++ new/test/hotspot/jtreg/gc/epsilon/TestDieDefault.java 2018-06-12 10:45:52.986965269 +0200 @@ -0,0 +1,108 @@ +/* + * Copyright (c) 2017, 2018, Red Hat, Inc. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * 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 TestDieDefault + * @key gc + * @requires vm.gc.Epsilon + * @summary Epsilon GC should die on heap exhaustion + * @library /test/lib + * @run main TestDieDefault + */ + +import jdk.test.lib.process.OutputAnalyzer; +import jdk.test.lib.process.ProcessTools; + +public class TestDieDefault { + + public static void passWith(String... args) throws Exception { + ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(args); + OutputAnalyzer out = new OutputAnalyzer(pb.start()); + out.shouldNotContain("OutOfMemoryError"); + out.shouldHaveExitValue(0); + } + + public static void failWith(String... args) throws Exception { + ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(args); + OutputAnalyzer out = new OutputAnalyzer(pb.start()); + out.shouldContain("OutOfMemoryError"); + if (out.getExitValue() == 0) { + throw new IllegalStateException("Should have failed with non-zero exit code"); + } + } + + public static void main(String[] args) throws Exception { + passWith("-Xmx128m", + "-XX:+UnlockExperimentalVMOptions", + "-XX:+UseEpsilonGC", + "-Dcount=1", + TestDieDefault.Workload.class.getName()); + + failWith("-Xmx128m", + "-XX:+UnlockExperimentalVMOptions", + "-XX:+UseEpsilonGC", + TestDieDefault.Workload.class.getName()); + + failWith("-Xmx128m", + "-Xint", + "-XX:+UnlockExperimentalVMOptions", + "-XX:+UseEpsilonGC", + TestDieDefault.Workload.class.getName()); + + failWith("-Xmx128m", + "-Xbatch", + "-Xcomp", + "-XX:+UnlockExperimentalVMOptions", + "-XX:+UseEpsilonGC", + TestDieDefault.Workload.class.getName()); + + failWith("-Xmx128m", + "-Xbatch", + "-Xcomp", + "-XX:TieredStopAtLevel=1", + "-XX:+UnlockExperimentalVMOptions", + "-XX:+UseEpsilonGC", + TestDieDefault.Workload.class.getName()); + + failWith("-Xmx128m", + "-Xbatch", + "-Xcomp", + "-XX:-TieredCompilation", + "-XX:+UnlockExperimentalVMOptions", + "-XX:+UseEpsilonGC", + TestDieDefault.Workload.class.getName()); + } + + public static class Workload { + static int COUNT = Integer.getInteger("count", 1_000_000_000); // ~24 GB allocation + + static volatile Object sink; + + public static void main(String... args) { + for (int c = 0; c < COUNT; c++) { + sink = new Object(); + } + } + } + +}