| /* |
| * Copyright (c) 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. |
| */ |
| |
| |
| /* |
| * @test ClassLoadUnloadTest |
| * @bug 8142506 |
| * @modules java.base/jdk.internal.misc |
| * @library /test/lib /runtime/testlibrary |
| * @library classes |
| * @build test.Empty |
| * @run driver ClassLoadUnloadTest |
| */ |
| |
| import jdk.test.lib.process.ProcessTools; |
| import jdk.test.lib.process.OutputAnalyzer; |
| import java.lang.ref.WeakReference; |
| import java.lang.reflect.Method; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| public class ClassLoadUnloadTest { |
| private static OutputAnalyzer out; |
| private static ProcessBuilder pb; |
| private static class ClassUnloadTestMain { |
| public static void main(String... args) throws Exception { |
| String className = "test.Empty"; |
| ClassLoader cl = ClassUnloadCommon.newClassLoader(); |
| Class<?> c = cl.loadClass(className); |
| cl = null; c = null; |
| ClassUnloadCommon.triggerUnloading(); |
| } |
| } |
| |
| static void checkFor(String... outputStrings) throws Exception { |
| out = new OutputAnalyzer(pb.start()); |
| for (String s: outputStrings) { |
| out.shouldContain(s); |
| } |
| out.shouldHaveExitValue(0); |
| } |
| |
| static void checkAbsent(String... outputStrings) throws Exception { |
| out = new OutputAnalyzer(pb.start()); |
| for (String s: outputStrings) { |
| out.shouldNotContain(s); |
| } |
| out.shouldHaveExitValue(0); |
| } |
| |
| // Use the same command-line heap size setting as ../ClassUnload/UnloadTest.java |
| static ProcessBuilder exec(String... args) throws Exception { |
| List<String> argsList = new ArrayList<>(); |
| Collections.addAll(argsList, args); |
| Collections.addAll(argsList, "-Xmn8m"); |
| Collections.addAll(argsList, "-Dtest.class.path=" + System.getProperty("test.class.path", ".")); |
| Collections.addAll(argsList, ClassUnloadTestMain.class.getName()); |
| return ProcessTools.createJavaProcessBuilder(argsList.toArray(new String[argsList.size()])); |
| } |
| |
| public static void main(String... args) throws Exception { |
| |
| // -Xlog:class+unload=info |
| pb = exec("-Xlog:class+unload=info"); |
| checkFor("[class,unload]", "unloading class"); |
| |
| // -Xlog:class+unload=off |
| pb = exec("-Xlog:class+unload=off"); |
| checkAbsent("[class,unload]"); |
| |
| // -XX:+TraceClassUnloading |
| pb = exec("-XX:+TraceClassUnloading"); |
| checkFor("[class,unload]", "unloading class"); |
| |
| // -XX:-TraceClassUnloading |
| pb = exec("-XX:-TraceClassUnloading"); |
| checkAbsent("[class,unload]"); |
| |
| // -Xlog:class+load=info |
| pb = exec("-Xlog:class+load=info"); |
| checkFor("[class,load]", "java.lang.Object", "source:"); |
| |
| // -Xlog:class+load=debug |
| pb = exec("-Xlog:class+load=debug"); |
| checkFor("[class,load]", "java.lang.Object", "source:", "klass:", "super:", "loader:", "bytes:"); |
| |
| // -Xlog:class+load=off |
| pb = exec("-Xlog:class+load=off"); |
| checkAbsent("[class,load]"); |
| |
| // -XX:+TraceClassLoading |
| pb = exec("-XX:+TraceClassLoading"); |
| checkFor("[class,load]", "java.lang.Object", "source:"); |
| |
| // -XX:-TraceClassLoading |
| pb = exec("-XX:-TraceClassLoading"); |
| checkAbsent("[class,load]"); |
| |
| // -verbose:class |
| pb = exec("-verbose:class"); |
| checkFor("[class,load]", "java.lang.Object", "source:"); |
| checkFor("[class,unload]", "unloading class"); |
| |
| // -Xlog:class+loader+data=trace |
| pb = exec("-Xlog:class+loader+data=trace"); |
| checkFor("[class,loader,data]", "create class loader data"); |
| |
| } |
| } |