1 /* 2 * Copyright (c) 2020 SAP SE. 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 java.io.File; 25 import java.nio.file.Files; 26 import java.io.IOException; 27 import java.util.List; 28 29 import jdk.test.lib.hprof.HprofParser; 30 import jdk.test.lib.hprof.parser.Reader; 31 import jdk.test.lib.hprof.model.Snapshot; 32 33 import jdk.test.lib.Asserts; 34 import jdk.test.lib.dcmd.PidJcmdExecutor; 35 import jdk.test.lib.process.OutputAnalyzer; 36 37 /* 38 * @test 39 * @summary Test of diagnostic command GC.heap_dump with gzipped output 40 * @library /test/lib 41 * @modules java.base/jdk.internal.misc 42 * java.compiler 43 * java.management 44 * jdk.internal.jvmstat/sun.jvmstat.monitor 45 * @run main/othervm -XX:+UseSerialGC HeapDumpCompressedTest 46 * @run main/othervm -XX:+UseParallelGC HeapDumpCompressedTest 47 * @run main/othervm -XX:+UseG1GC HeapDumpCompressedTest 48 */ 49 public class HeapDumpCompressedTest { 50 public static HeapDumpCompressedTest ref; 51 52 public static void main(String[] args) throws Exception { 53 PidJcmdExecutor executor = new PidJcmdExecutor(); 54 ref = new HeapDumpCompressedTest(); 55 File dump = new File("jcmd.gc.heap_dump." + System.currentTimeMillis() + ".hprof.gz"); 56 57 if (dump.exists()) { 58 dump.delete(); 59 } 60 61 // Check we detect an invalid compression level. 62 OutputAnalyzer output = executor.execute("GC.heap_dump -gz -gz-level=10 " + dump.getAbsolutePath()); 63 output.shouldContain("Compression level out of range"); 64 65 // Check we can create a gzipped dump. 66 executor.execute("GC.heap_dump -gz " + dump.getAbsolutePath()); 67 68 // Check we detect an already present heap dump. 69 output = executor.execute("GC.heap_dump -gz " + dump.getAbsolutePath()); 70 output.shouldContain("Unable to create "); 71 72 // Check the level only if we write gzipped. 73 output = executor.execute("GC.heap_dump -gz-level=11 " + dump.getAbsolutePath()); 74 output.shouldContain("Unable to create "); 75 76 verifyHeapDump(dump); 77 dump.delete(); 78 } 79 80 private static void verifyHeapDump(File dump) throws Exception { 81 82 Asserts.assertTrue(dump.exists() && dump.isFile(), "Could not create dump file " + dump.getAbsolutePath()); 83 try { 84 File out = HprofParser.parse(dump); 85 86 Asserts.assertTrue(out != null && out.exists() && out.isFile(), "Could not find hprof parser output file"); 87 List<String> lines = Files.readAllLines(out.toPath()); 88 Asserts.assertTrue(lines.size() > 0, "hprof parser output file is empty"); 89 for (String line : lines) { 90 Asserts.assertFalse(line.matches(".*WARNING(?!.*Failed to resolve object.*constantPoolOop.*).*")); 91 } 92 93 out.delete(); 94 } catch (Exception e) { 95 e.printStackTrace(); 96 Asserts.fail("Could not parse dump file " + dump.getAbsolutePath()); 97 } 98 } 99 } 100