1 /* 2 * Copyright (c) 2017, 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 26 * @bug 8130072 27 * @summary Check that Shared Dictionary is printed out with jcmd 28 * @requires vm.cds 29 * @library /test/lib 30 * @modules java.base/jdk.internal.misc 31 * @run main DumpSharedDictionary 32 */ 33 34 import jdk.test.lib.cds.CDSTestUtils; 35 import jdk.test.lib.process.ProcessTools; 36 import jdk.test.lib.process.OutputAnalyzer; 37 import jdk.test.lib.JDKToolFinder; 38 39 public class DumpSharedDictionary { 40 41 public static void main(String[] args) throws Exception { 42 if (args.length == 0) { 43 // Start this process 44 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 45 "-XX:SharedArchiveFile=./DumpSharedDictionary.jsa", 46 "-Xshare:dump"); 47 48 OutputAnalyzer out = CDSTestUtils.executeAndLog(pb, "dump"); 49 out.shouldHaveExitValue(0); 50 51 String testjdkPath = System.getProperty("test.jdk"); 52 53 pb = ProcessTools.createJavaProcessBuilder( 54 "-XX:SharedArchiveFile=./DumpSharedDictionary.jsa", 55 "-Dtest.jdk=" + testjdkPath, 56 "-Xshare:on", "DumpSharedDictionary", "test"); 57 58 out = CDSTestUtils.executeAndLog(pb, "exec"); 59 if (!CDSTestUtils.isUnableToMap(out)) { 60 out.shouldHaveExitValue(0); 61 } 62 } else { 63 // Grab my own PID 64 String pid = Long.toString(ProcessTools.getProcessId()); 65 66 ProcessBuilder pb = new ProcessBuilder(); 67 pb.command(new String[] {JDKToolFinder.getJDKTool("jcmd"), pid, "VM.systemdictionary"}); 68 OutputAnalyzer output = CDSTestUtils.executeAndLog(pb, "jcmd-systemdictionary"); 69 try { 70 output.shouldContain("Shared Dictionary statistics:"); 71 output.shouldContain("Number of buckets"); 72 output.shouldContain("Number of entries"); 73 output.shouldContain("Maximum bucket size"); 74 } catch (RuntimeException e) { 75 output.shouldContain("Unknown diagnostic command"); 76 } 77 78 pb.command(new String[] {JDKToolFinder.getJDKTool("jcmd"), pid, "VM.systemdictionary", "-verbose"}); 79 output = CDSTestUtils.executeAndLog(pb, "jcmd-systemdictionary-verbose"); 80 try { 81 output.shouldContain("Shared Dictionary"); 82 output.shouldContain("Dictionary for loader data: 0x"); 83 output.shouldContain("^java.lang.String"); 84 } catch (RuntimeException e) { 85 output.shouldContain("Unknown diagnostic command"); 86 } 87 } 88 } 89 }