1 /* 2 * Copyright (c) 2015, 2016, 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 org.testng.annotations.Test; 25 import org.testng.Assert; 26 27 import java.io.File; 28 import java.nio.file.Files; 29 import java.io.IOException; 30 import java.util.List; 31 32 import jdk.test.lib.hprof.HprofParser; 33 import jdk.test.lib.hprof.model.Snapshot; 34 35 import jdk.test.lib.JDKToolFinder; 36 import jdk.test.lib.process.OutputAnalyzer; 37 import jdk.test.lib.dcmd.CommandExecutor; 38 import jdk.test.lib.dcmd.PidJcmdExecutor; 39 40 /* 41 * @test 42 * @summary Test of diagnostic command GC.heap_dump 43 * @library /test/lib 44 * @modules java.base/jdk.internal.misc 45 * java.compiler 46 * java.management 47 * jdk.jvmstat/sun.jvmstat.monitor 48 * @run testng HeapDumpTest 49 */ 50 public class HeapDumpTest { 51 protected String heapDumpArgs = ""; 52 53 public void run(CommandExecutor executor) throws IOException { 54 File dump = new File("jcmd.gc.heap_dump." + System.currentTimeMillis() + ".hprof"); 55 if (dump.exists()) { 56 dump.delete(); 57 } 58 59 String cmd = "GC.heap_dump " + heapDumpArgs + " " + dump.getAbsolutePath(); 60 executor.execute(cmd); 61 62 verifyHeapDump(dump); 63 dump.delete(); 64 } 65 66 private void verifyHeapDump(File dump) { 67 Assert.assertTrue(dump.exists() && dump.isFile(), "Could not create dump file " + dump.getAbsolutePath()); 68 try { 69 File out = HprofParser.parse(dump); 70 71 Assert.assertTrue(out != null && out.exists() && out.isFile(), "Could not find hprof parser output file"); 72 List<String> lines = Files.readAllLines(out.toPath()); 73 Assert.assertTrue(lines.size() > 0, "hprof parser output file is empty"); 74 for (String line : lines) { 75 Assert.assertFalse(line.matches(".*WARNING(?!.*Failed to resolve object.*constantPoolOop.*).*")); 76 } 77 78 out.delete(); 79 } catch (Exception e) { 80 e.printStackTrace(); 81 Assert.fail("Could not parse dump file " + dump.getAbsolutePath()); 82 } 83 } 84 85 /* GC.heap_dump is not available over JMX, running jcmd pid executor instead */ 86 @Test 87 public void pid() throws IOException { 88 run(new PidJcmdExecutor()); 89 } 90 } 91