| /* |
| * Copyright (c) 2017, 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 |
| * @library modules |
| * @modules java.scripting |
| * @run testng/othervm ReloadTest |
| * @summary Basic test of ServiceLoader.reload |
| */ |
| |
| import java.util.ConcurrentModificationException; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.ServiceLoader; |
| import java.util.ServiceLoader.Provider; |
| import java.util.Spliterator; |
| import java.util.stream.Collectors; |
| import java.util.stream.Stream; |
| import static java.util.ServiceLoader.*; |
| import javax.script.ScriptEngineFactory; |
| |
| import org.testng.annotations.Test; |
| import static org.testng.Assert.*; |
| |
| @Test |
| public class ReloadTest { |
| |
| public void testReload() { |
| ServiceLoader<ScriptEngineFactory> sl = load(ScriptEngineFactory.class); |
| List<String> names1 = sl.stream() |
| .map(Provider::get) |
| .map(ScriptEngineFactory::getEngineName) |
| .collect(Collectors.toList()); |
| assertFalse(names1.isEmpty()); |
| sl.reload(); |
| List<String> names2 = sl.stream() |
| .map(Provider::get) |
| .map(ScriptEngineFactory::getEngineName) |
| .collect(Collectors.toList()); |
| assertEquals(names1, names2); |
| } |
| |
| @Test(expectedExceptions = { ConcurrentModificationException.class }) |
| public void testIteratorHasNext() { |
| ServiceLoader<ScriptEngineFactory> sl = load(ScriptEngineFactory.class); |
| Iterator<ScriptEngineFactory> iterator = sl.iterator(); |
| sl.reload(); |
| iterator.hasNext(); |
| } |
| |
| @Test(expectedExceptions = { ConcurrentModificationException.class }) |
| public void testIteratorNext() { |
| ServiceLoader<ScriptEngineFactory> sl = load(ScriptEngineFactory.class); |
| Iterator<ScriptEngineFactory> iterator = sl.iterator(); |
| assertTrue(iterator.hasNext()); |
| sl.reload(); |
| iterator.next(); |
| } |
| |
| @Test(expectedExceptions = { ConcurrentModificationException.class }) |
| public void testStreamFindAny() { |
| ServiceLoader<ScriptEngineFactory> sl = load(ScriptEngineFactory.class); |
| Stream<Provider<ScriptEngineFactory>> stream = sl.stream(); |
| sl.reload(); |
| stream.findAny(); |
| } |
| |
| @Test(expectedExceptions = { ConcurrentModificationException.class }) |
| public void testSpliteratorTryAdvance() { |
| ServiceLoader<ScriptEngineFactory> sl = load(ScriptEngineFactory.class); |
| Stream<Provider<ScriptEngineFactory>> stream = sl.stream(); |
| Spliterator<Provider<ScriptEngineFactory>> spliterator = stream.spliterator(); |
| sl.reload(); |
| spliterator.tryAdvance(System.out::println); |
| } |
| |
| } |