1 /* 2 * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test TestHeapDumpOnOutOfMemoryError 26 * @summary Test verifies that -XX:HeapDumpOnOutOfMemoryError dump heap when OutOfMemory is thrown in heap 27 * @library /test/lib 28 * @run driver TestHeapDumpOnOutOfMemoryError run heap 29 */ 30 31 import jdk.test.lib.Asserts; 32 import jdk.test.lib.classloader.GeneratingClassLoader; 33 import jdk.test.lib.hprof.HprofParser; 34 import jdk.test.lib.process.ProcessTools; 35 import jdk.test.lib.process.OutputAnalyzer; 36 37 import java.io.File; 38 39 public class TestHeapDumpOnOutOfMemoryError { 40 41 public static String HEAP_OOME = "heap"; 42 public static String METASPACE_OOME = "metaspace"; 43 44 public static void main(String[] args) throws Exception { 45 if (args.length == 1) { 46 try { 47 if (args[0].equals(HEAP_OOME)) { 48 Object[] oa = new Object[Integer.MAX_VALUE]; 49 for(int i = 0; i < oa.length; i++) { 50 oa[i] = new Object[Integer.MAX_VALUE]; 51 } 52 } else { 53 GeneratingClassLoader loader = new GeneratingClassLoader(); 54 for (int i = 0; ; i++) { 55 loader.loadClass(loader.getClassName(i)); 56 } 57 } 58 throw new Error("OOME not triggered"); 59 } catch (OutOfMemoryError err) { 60 return; 61 } 62 } 63 test(args[1]); 64 } 65 66 static void test(String type) throws Exception { 67 String heapdumpFilename = type + ".hprof"; 68 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+HeapDumpOnOutOfMemoryError", 69 "-XX:HeapDumpPath=" + heapdumpFilename, "-XX:MaxMetaspaceSize=64m", 70 TestHeapDumpOnOutOfMemoryError.class.getName(), type); 71 72 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 73 output.stdoutShouldNotBeEmpty(); 74 output.shouldContain("Dumping heap to " + type + ".hprof"); 75 File dump = new File(heapdumpFilename); 76 Asserts.assertTrue(dump.exists() && dump.isFile(), 77 "Could not find dump file " + dump.getAbsolutePath()); 78 79 HprofParser.parse(new File(heapdumpFilename)); 80 System.out.println("PASSED"); 81 } 82 83 }