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:+UnlockDiagnosticVMOptions", 46 "-XX:SharedArchiveFile=./DumpSharedDictionary.jsa", 47 "-Xshare:dump"); 48 49 OutputAnalyzer out = CDSTestUtils.executeAndLog(pb, "dump"); 50 out.shouldHaveExitValue(0); 51 52 String testjdkPath = System.getProperty("test.jdk"); 53 54 pb = ProcessTools.createJavaProcessBuilder( 55 "-XX:+UnlockDiagnosticVMOptions", 56 "-XX:SharedArchiveFile=./DumpSharedDictionary.jsa", 57 "-Dtest.jdk=" + testjdkPath, 58 "-Xshare:on", "DumpSharedDictionary", "test"); 59 60 out = CDSTestUtils.executeAndLog(pb, "exec"); 61 if (!CDSTestUtils.isUnableToMap(out)) { 62 out.shouldHaveExitValue(0); 63 } 64 } else { 65 // Grab my own PID 66 String pid = Long.toString(ProcessTools.getProcessId()); 67 68 ProcessBuilder pb = new ProcessBuilder(); 69 pb.command(new String[] {JDKToolFinder.getJDKTool("jcmd"), pid, "VM.systemdictionary"}); 70 OutputAnalyzer output = CDSTestUtils.executeAndLog(pb, "jcmd-systemdictionary"); 71 try { 72 output.shouldContain("Shared Dictionary statistics:"); 73 output.shouldContain("Number of buckets"); 74 output.shouldContain("Number of entries"); 75 output.shouldContain("Maximum bucket size"); 76 } catch (RuntimeException e) { 77 output.shouldContain("Unknown diagnostic command"); 78 } 79 80 pb.command(new String[] {JDKToolFinder.getJDKTool("jcmd"), pid, "VM.systemdictionary", "-verbose"}); 81 output = CDSTestUtils.executeAndLog(pb, "jcmd-systemdictionary-verbose"); 82 try { 83 output.shouldContain("Shared Dictionary"); 84 output.shouldContain("Dictionary for loader data: 0x"); 85 output.shouldContain("^java.lang.String"); 86 } catch (RuntimeException e) { 87 output.shouldContain("Unknown diagnostic command"); 88 } 89 } 90 } 91 }