| /* |
| * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 8130072 |
| * @summary Check that Shared Dictionary is printed out with jcmd |
| * Feature support: compressed oops/kptrs, 64-bit os, not on windows |
| * @requires vm.cds |
| * @requires (sun.arch.data.model != "32") & (os.family != "windows") |
| * @requires (vm.opt.UseCompressedOops == null) | (vm.opt.UseCompressedOops == true) |
| * @library /test/lib |
| * @modules java.base/jdk.internal.misc |
| * @run main DumpSharedDictionary |
| */ |
| |
| import jdk.test.lib.cds.CDSTestUtils; |
| import jdk.test.lib.process.ProcessTools; |
| import jdk.test.lib.process.OutputAnalyzer; |
| import jdk.test.lib.JDKToolFinder; |
| |
| public class DumpSharedDictionary { |
| |
| public static void main(String[] args) throws Exception { |
| if (args.length == 0) { |
| // Start this process |
| ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( |
| "-XX:+UnlockDiagnosticVMOptions", |
| "-XX:SharedArchiveFile=./DumpSharedDictionary.jsa", |
| "-XX:+UseCompressedOops", |
| "-Xshare:dump"); |
| |
| OutputAnalyzer out = CDSTestUtils.executeAndLog(pb, "dump"); |
| out.shouldHaveExitValue(0); |
| |
| String testjdkPath = System.getProperty("test.jdk"); |
| |
| pb = ProcessTools.createJavaProcessBuilder( |
| "-XX:+UnlockDiagnosticVMOptions", |
| "-XX:SharedArchiveFile=./DumpSharedDictionary.jsa", |
| "-XX:+UseCompressedOops", |
| "-Dtest.jdk=" + testjdkPath, |
| "-Xshare:on", "DumpSharedDictionary", "test"); |
| |
| out = CDSTestUtils.executeAndLog(pb, "exec"); |
| out.shouldHaveExitValue(0); |
| } else { |
| // Grab my own PID |
| String pid = Long.toString(ProcessTools.getProcessId()); |
| |
| ProcessBuilder pb = new ProcessBuilder(); |
| pb.command(new String[] {JDKToolFinder.getJDKTool("jcmd"), pid, "VM.systemdictionary"}); |
| OutputAnalyzer output = CDSTestUtils.executeAndLog(pb, "jcmd-systemdictionary"); |
| try { |
| output.shouldContain("Shared Dictionary statistics:"); |
| output.shouldContain("Number of buckets"); |
| output.shouldContain("Number of entries"); |
| output.shouldContain("Maximum bucket size"); |
| } catch (RuntimeException e) { |
| output.shouldContain("Unknown diagnostic command"); |
| } |
| |
| pb.command(new String[] {JDKToolFinder.getJDKTool("jcmd"), pid, "VM.systemdictionary", "-verbose"}); |
| output = CDSTestUtils.executeAndLog(pb, "jcmd-systemdictionary-verbose"); |
| try { |
| output.shouldContain("Shared Dictionary"); |
| output.shouldContain("Dictionary for class loader 0x"); |
| output.shouldContain("^java.lang.String"); |
| } catch (RuntimeException e) { |
| output.shouldContain("Unknown diagnostic command"); |
| } |
| } |
| } |
| } |