| /* |
| * 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 |
| * @bug 8165793 8169435 |
| * @summary Test ClassLoader.isRegisteredAsParallelCapable() method |
| * @run main IsParallelCapable |
| */ |
| |
| import java.util.stream.Stream; |
| |
| public class IsParallelCapable { |
| public abstract static class TestCL extends ClassLoader { |
| static { |
| ClassLoader.registerAsParallelCapable(); |
| } |
| public abstract boolean expectCapable(); |
| public Class findClass(String name) throws ClassNotFoundException { |
| throw new ClassNotFoundException("Why are you using this?"); |
| } |
| } |
| |
| public static class ParaCL extends TestCL { |
| static { |
| ClassLoader.registerAsParallelCapable(); |
| } |
| @Override |
| public boolean expectCapable() { return true; } |
| } |
| |
| public static class NonParaCL extends TestCL { |
| @Override |
| public boolean expectCapable() { |
| // Doesn't call registerAsParallelCapable() |
| return false; |
| } |
| } |
| |
| public static class NonParaSubCL1 extends ParaCL { |
| @Override |
| public boolean expectCapable() { |
| // Doesn't call registerAsParallelCapable() |
| return false; |
| } |
| } |
| |
| public static class NonParaSubCL2 extends NonParaCL { |
| static { |
| ClassLoader.registerAsParallelCapable(); |
| } |
| @Override |
| public boolean expectCapable() { |
| // Superclass is not parallel capable |
| return false; |
| } |
| } |
| |
| public static class ParaSubCL extends ParaCL { |
| static { |
| ClassLoader.registerAsParallelCapable(); |
| } |
| @Override |
| public boolean expectCapable() { return true; } |
| } |
| |
| public static void main(String[] args) throws Exception { |
| if (!ClassLoader.getSystemClassLoader().isRegisteredAsParallelCapable()) { |
| throw new RuntimeException("System classloader not parallel capable!?"); |
| } |
| |
| Stream.of(ParaCL.class, |
| NonParaCL.class, |
| NonParaSubCL1.class, |
| NonParaSubCL2.class, |
| ParaSubCL.class) |
| .forEach(IsParallelCapable::testClassLoaderClass); |
| } |
| |
| private static void testClassLoaderClass(Class<? extends TestCL> klazz) { |
| try { |
| TestCL cl = (TestCL)klazz.newInstance(); |
| if (cl.expectCapable() != cl.isRegisteredAsParallelCapable()) { |
| throw new RuntimeException(klazz + " expectCapable: " + |
| cl.expectCapable() + ", isRegisteredAsParallelCapable: " + |
| cl.isRegisteredAsParallelCapable()); |
| } else { |
| System.out.println(klazz + " passed"); |
| } |
| } catch (InstantiationException | IllegalAccessException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| } |