| /* |
| * Copyright (c) 2015, 2016, 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. |
| */ |
| |
| import sun.jvm.hotspot.HotSpotAgent; |
| import sun.jvm.hotspot.utilities.SystemDictionaryHelper; |
| import sun.jvm.hotspot.oops.InstanceKlass; |
| import sun.jvm.hotspot.debugger.*; |
| |
| import jdk.test.lib.JDKToolLauncher; |
| import jdk.test.lib.JDKToolFinder; |
| import jdk.test.lib.Platform; |
| import jdk.test.lib.process.ProcessTools; |
| import jdk.test.lib.process.OutputAnalyzer; |
| import jdk.test.lib.Utils; |
| import jdk.test.lib.Asserts; |
| |
| /* |
| * @test |
| * @library /test/lib |
| * @modules java.base/jdk.internal.misc |
| * @modules jdk.hotspot.agent |
| * @modules jdk.hotspot.agent/sun.jvm.hotspot |
| * @modules jdk.hotspot.agent/sun.jvm.hotspot.utilities |
| * @modules jdk.hotspot.agent/sun.jvm.hotspot.oops |
| * @compile -XDignore.symbol.file=true -Xmodule:jdk.hotspot.agent |
| * -XaddExports:java.base/jdk.internal.misc=jdk.hotspot.agent |
| * -XaddExports:java.management/java.lang.management=jdk.hotspot.agent |
| * TestInstanceKlassSizeForInterface.java |
| * @run main/othervm TestInstanceKlassSizeForInterface |
| */ |
| |
| interface Language { |
| static final long nbrOfWords = 99999; |
| public abstract long getNbrOfWords(); |
| } |
| |
| class ParselTongue implements Language { |
| public long getNbrOfWords() { |
| return nbrOfWords * 4; |
| } |
| } |
| |
| public class TestInstanceKlassSizeForInterface { |
| |
| private static void SAInstanceKlassSize(int pid, |
| String[] instanceKlassNames) { |
| |
| HotSpotAgent agent = new HotSpotAgent(); |
| try { |
| agent.attach((int)pid); |
| } |
| catch (DebuggerException e) { |
| System.out.println(e.getMessage()); |
| System.err.println("Unable to connect to process ID: " + pid); |
| |
| agent.detach(); |
| e.printStackTrace(); |
| } |
| |
| for (String instanceKlassName : instanceKlassNames) { |
| InstanceKlass iKlass = SystemDictionaryHelper.findInstanceKlass( |
| instanceKlassName); |
| System.out.println("SA: The size of " + instanceKlassName + |
| " is " + iKlass.getSize()); |
| } |
| agent.detach(); |
| } |
| |
| private static String getJcmdInstanceKlassSize(OutputAnalyzer output, |
| String instanceKlassName) { |
| for (String s : output.asLines()) { |
| if (s.contains(instanceKlassName)) { |
| String tokens[]; |
| System.out.println(s); |
| tokens = s.split("\\s+"); |
| return tokens[3]; |
| } |
| } |
| return null; |
| } |
| |
| private static void createAnotherToAttach( |
| String[] instanceKlassNames) throws Exception { |
| |
| ProcessBuilder pb = new ProcessBuilder(); |
| |
| // Grab the pid from the current java process and pass it |
| String[] toolArgs = { |
| "-XX:+UnlockDiagnosticVMOptions", |
| "--add-modules=jdk.hotspot.agent", |
| "--add-exports=jdk.hotspot.agent/sun.jvm.hotspot=ALL-UNNAMED", |
| "--add-exports=jdk.hotspot.agent/sun.jvm.hotspot.utilities=ALL-UNNAMED", |
| "--add-exports=jdk.hotspot.agent/sun.jvm.hotspot.oops=ALL-UNNAMED", |
| "TestInstanceKlassSizeForInterface", |
| Long.toString(ProcessTools.getProcessId()) |
| }; |
| |
| pb.command(new String[] { |
| JDKToolFinder.getJDKTool("jcmd"), |
| Long.toString(ProcessTools.getProcessId()), |
| "GC.class_stats", |
| "VTab,ITab,OopMap,KlassBytes" |
| } |
| ); |
| |
| // Start a new process to attach to the current process |
| ProcessBuilder processBuilder = ProcessTools |
| .createJavaProcessBuilder(toolArgs); |
| OutputAnalyzer SAOutput = ProcessTools.executeProcess(processBuilder); |
| System.out.println(SAOutput.getOutput()); |
| |
| OutputAnalyzer jcmdOutput = new OutputAnalyzer(pb.start()); |
| System.out.println(jcmdOutput.getOutput()); |
| |
| // Match the sizes from both the output streams |
| for (String instanceKlassName : instanceKlassNames) { |
| System.out.println ("Trying to match for " + instanceKlassName); |
| String jcmdInstanceKlassSize = getJcmdInstanceKlassSize( |
| jcmdOutput, |
| instanceKlassName); |
| for (String s : SAOutput.asLines()) { |
| if (s.contains(instanceKlassName)) { |
| Asserts.assertTrue( |
| s.contains(jcmdInstanceKlassSize), |
| "The size computed by SA for " + |
| instanceKlassName + " does not match."); |
| } |
| } |
| } |
| } |
| |
| public static void main (String... args) throws Exception { |
| String[] instanceKlassNames = new String[] { |
| "Language", |
| "ParselTongue", |
| "TestInstanceKlassSizeForInterface$1" |
| }; |
| |
| if (!Platform.shouldSAAttach()) { |
| System.out.println( |
| "SA attach not expected to work - test skipped."); |
| return; |
| } |
| |
| if ( args == null || args.length == 0 ) { |
| ParselTongue lang = new ParselTongue(); |
| |
| Language ventro = new Language() { |
| public long getNbrOfWords() { |
| return nbrOfWords * 8; |
| } |
| }; |
| |
| // Not tested at this point. The test needs to be enhanced |
| // later to test for the sizes of the Lambda MetaFactory |
| // generated anonymous classes too. (After JDK-8160228 gets |
| // fixed.) |
| Runnable r2 = () -> System.out.println("Hello world!"); |
| r2.run(); |
| |
| createAnotherToAttach(instanceKlassNames); |
| } else { |
| SAInstanceKlassSize(Integer.parseInt(args[0]), instanceKlassNames); |
| } |
| } |
| } |