| /* |
| * 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 LoaderConstraintsTest |
| * @bug 8149996 |
| * @library /testlibrary /runtime/testlibrary |
| * @library classes |
| * @build ClassUnloadCommon test.Empty jdk.test.lib.* jdk.test.lib.OutputAnalyzer jdk.test.lib.ProcessTools |
| * @run driver LoaderConstraintsTest |
| */ |
| |
| import jdk.test.lib.*; |
| import java.lang.ref.WeakReference; |
| import java.lang.reflect.Method; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| public class LoaderConstraintsTest { |
| 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(); |
| } |
| } |
| |
| // 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.classes=" + System.getProperty("test.classes",".")); |
| Collections.addAll(argsList, ClassUnloadTestMain.class.getName()); |
| return ProcessTools.createJavaProcessBuilder(argsList.toArray(new String[argsList.size()])); |
| } |
| |
| public static void main(String... args) throws Exception { |
| |
| // -XX:+TraceLoaderConstraints |
| pb = exec("-XX:+TraceLoaderConstraints"); |
| out = new OutputAnalyzer(pb.start()); |
| out.getOutput(); |
| out.shouldContain("[classload,constraints] adding new constraint for name: java/lang/Class, loader[0]: jdk/internal/loader/ClassLoaders$AppClassLoader, loader[1]: <bootloader>"); |
| |
| // -Xlog:classload+constraints=info |
| pb = exec("-Xlog:classload+constraints=info"); |
| out = new OutputAnalyzer(pb.start()); |
| out.shouldContain("[classload,constraints] adding new constraint for name: java/lang/Class, loader[0]: jdk/internal/loader/ClassLoaders$AppClassLoader, loader[1]: <bootloader>"); |
| |
| // -XX:-TraceLoaderConstraints |
| pb = exec("-XX:-TraceLoaderConstraints"); |
| out = new OutputAnalyzer(pb.start()); |
| out.shouldNotContain("[classload,constraints]"); |
| |
| // -Xlog:classload+constraints=off |
| pb = exec("-Xlog:classload+constraints=off"); |
| out = new OutputAnalyzer(pb.start()); |
| out.shouldNotContain("[classload,constraints]"); |
| |
| } |
| } |