1 /* 2 * Copyright (c) 2006, 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 import static jdk.test.lib.Asserts.assertTrue; 25 import static jdk.test.lib.Asserts.fail; 26 27 import java.io.File; 28 import java.lang.management.*; 29 import java.util.List; 30 31 import jdk.test.lib.hprof.HprofParser; 32 import jdk.test.lib.process.ProcessTools; 33 34 import com.sun.management.HotSpotDiagnosticMXBean; 35 36 /* 37 * @test 38 * @bug 6455258 39 * @summary Sanity test for com.sun.management.HotSpotDiagnosticMXBean.dumpHeap method 40 * @library /test/lib 41 * @build jdk.test.lib.hprof.* 42 * @build jdk.test.lib.hprof.model.* 43 * @build jdk.test.lib.hprof.parser.* 44 * @build jdk.test.lib.hprof.util.* 45 * @run main DumpHeap 46 */ 47 public class DumpHeap { 48 49 public static void main(String[] args) throws Exception { 50 List<HotSpotDiagnosticMXBean> list = ManagementFactory.getPlatformMXBeans(HotSpotDiagnosticMXBean.class); 51 File dump = new File(ProcessTools.getProcessId() + ".hprof"); 52 if (dump.exists()) { 53 dump.delete(); 54 } 55 System.out.println("Dumping to file: " + dump.getAbsolutePath()); 56 list.get(0).dumpHeap(dump.getAbsolutePath(), true); 57 58 verifyDumpFile(dump); 59 60 dump.delete(); 61 } 62 63 private static void verifyDumpFile(File dump) { 64 assertTrue(dump.exists() && dump.isFile(), "Could not create dump file"); 65 try { 66 HprofParser.parse(dump); 67 } catch (Exception e) { 68 e.printStackTrace(); 69 fail("Could not parse dump file"); 70 } 71 } 72 73 }