--- /dev/null 2018-04-27 20:26:53.042636102 -0700 +++ new/test/hotspot/jtreg/runtime/ErrorHandling/TestHeapDumpOnOutOfMemoryError.java 2018-06-12 16:09:28.624102243 -0700 @@ -0,0 +1,83 @@ +/* + * Copyright (c) 2018, Oracle and/or its affiliates. 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 TestHeapDumpOnOutOfMemoryError + * @summary Test verifies that -XX:HeapDumpOnOutOfMemoryError dump heap when OutOfMemory is thrown in heap + * @library /test/lib + * @run driver TestHeapDumpOnOutOfMemoryError run heap + */ + +import jdk.test.lib.Asserts; +import jdk.test.lib.classloader.GeneratingClassLoader; +import jdk.test.lib.hprof.HprofParser; +import jdk.test.lib.process.ProcessTools; +import jdk.test.lib.process.OutputAnalyzer; + +import java.io.File; + +public class TestHeapDumpOnOutOfMemoryError { + + public static final String HEAP_OOME = "heap"; + public static final String METASPACE_OOME = "metaspace"; + + public static void main(String[] args) throws Exception { + if (args.length == 1) { + try { + if (args[0].equals(HEAP_OOME)) { + Object[] oa = new Object[Integer.MAX_VALUE]; + for(int i = 0; i < oa.length; i++) { + oa[i] = new Object[Integer.MAX_VALUE]; + } + } else { + GeneratingClassLoader loader = new GeneratingClassLoader(); + for (int i = 0; ; i++) { + loader.loadClass(loader.getClassName(i)); + } + } + throw new Error("OOME not triggered"); + } catch (OutOfMemoryError err) { + return; + } + } + test(args[1]); + } + + static void test(String type) throws Exception { + String heapdumpFilename = type + ".hprof"; + ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+HeapDumpOnOutOfMemoryError", + "-XX:HeapDumpPath=" + heapdumpFilename, "-XX:MaxMetaspaceSize=64m", + TestHeapDumpOnOutOfMemoryError.class.getName(), type); + + OutputAnalyzer output = new OutputAnalyzer(pb.start()); + output.stdoutShouldNotBeEmpty(); + output.shouldContain("Dumping heap to " + type + ".hprof"); + File dump = new File(heapdumpFilename); + Asserts.assertTrue(dump.exists() && dump.isFile(), + "Could not find dump file " + dump.getAbsolutePath()); + + HprofParser.parse(new File(heapdumpFilename)); + System.out.println("PASSED"); + } + +}