115 lines
3.8 KiB
Java
115 lines
3.8 KiB
Java
/*
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* Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 8165793 8169435
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* @summary Test ClassLoader.isRegisteredAsParallelCapable() method
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* @run main IsParallelCapable
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*/
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import java.util.stream.Stream;
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public class IsParallelCapable {
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public abstract static class TestCL extends ClassLoader {
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static {
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ClassLoader.registerAsParallelCapable();
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}
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public abstract boolean expectCapable();
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public Class findClass(String name) throws ClassNotFoundException {
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throw new ClassNotFoundException("Why are you using this?");
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}
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}
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public static class ParaCL extends TestCL {
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static {
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ClassLoader.registerAsParallelCapable();
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}
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@Override
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public boolean expectCapable() { return true; }
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}
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public static class NonParaCL extends TestCL {
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@Override
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public boolean expectCapable() {
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// Doesn't call registerAsParallelCapable()
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return false;
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}
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}
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public static class NonParaSubCL1 extends ParaCL {
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@Override
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public boolean expectCapable() {
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// Doesn't call registerAsParallelCapable()
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return false;
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}
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}
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public static class NonParaSubCL2 extends NonParaCL {
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static {
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ClassLoader.registerAsParallelCapable();
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}
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@Override
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public boolean expectCapable() {
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// Superclass is not parallel capable
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return false;
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}
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}
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public static class ParaSubCL extends ParaCL {
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static {
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ClassLoader.registerAsParallelCapable();
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}
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@Override
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public boolean expectCapable() { return true; }
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}
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public static void main(String[] args) throws Exception {
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if (!ClassLoader.getSystemClassLoader().isRegisteredAsParallelCapable()) {
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throw new RuntimeException("System classloader not parallel capable!?");
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}
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Stream.of(ParaCL.class,
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NonParaCL.class,
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NonParaSubCL1.class,
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NonParaSubCL2.class,
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ParaSubCL.class)
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.forEach(IsParallelCapable::testClassLoaderClass);
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}
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private static void testClassLoaderClass(Class<? extends TestCL> klazz) {
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try {
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TestCL cl = (TestCL)klazz.newInstance();
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if (cl.expectCapable() != cl.isRegisteredAsParallelCapable()) {
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throw new RuntimeException(klazz + " expectCapable: " +
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cl.expectCapable() + ", isRegisteredAsParallelCapable: " +
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cl.isRegisteredAsParallelCapable());
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} else {
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System.out.println(klazz + " passed");
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}
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} catch (InstantiationException | IllegalAccessException e) {
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throw new RuntimeException(e);
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}
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}
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}
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