272 lines
13 KiB
Java
272 lines
13 KiB
Java
/*
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* Copyright (c) 2014, 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 8048209
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* @summary Check that Collections.synchronizedNavigableSet().tailSet() is using
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* the same lock object as it's source.
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* @modules java.base/java.util:open
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* @run testng SyncSubMutexes
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*/
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import java.lang.reflect.Field;
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import java.util.*;
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import java.util.Set;
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import java.util.Arrays;
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import org.testng.annotations.Test;
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import org.testng.annotations.DataProvider;
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import static org.testng.Assert.assertSame;
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public class SyncSubMutexes {
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@Test(dataProvider = "Collections")
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public void testCollections(Collection<String> instance) {
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// nothing to test, no subset methods
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}
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@Test(dataProvider = "Lists")
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public void testLists(List<String> instance) {
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assertSame(getSyncCollectionMutex(instance.subList(0, 1)), getSyncCollectionMutex(instance));
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}
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@Test(dataProvider = "Sets")
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public void testSets(Set<String> instance) {
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// nothing to test, no subset methods
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}
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@Test(dataProvider = "SortedSets")
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public void testSortedSets(SortedSet<String> instance) {
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assertSame(getSyncCollectionMutex(instance.headSet("Echo")), getSyncCollectionMutex(instance));
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assertSame(getSyncCollectionMutex(instance.tailSet("Charlie")), getSyncCollectionMutex(instance));
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assertSame(getSyncCollectionMutex(instance.subSet("Charlie", "Echo")), getSyncCollectionMutex(instance));
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}
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@Test(dataProvider = "NavigableSets")
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public void testNavigableSets(NavigableSet<String> instance) {
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assertSame(getSyncCollectionMutex(instance.descendingSet()), getSyncCollectionMutex(instance));
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assertSame(getSyncCollectionMutex(instance.headSet("Echo")), getSyncCollectionMutex(instance));
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assertSame(getSyncCollectionMutex(instance.headSet("Echo", true)), getSyncCollectionMutex(instance));
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assertSame(getSyncCollectionMutex(instance.tailSet("Charlie")), getSyncCollectionMutex(instance));
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assertSame(getSyncCollectionMutex(instance.tailSet("Charlie", true)), getSyncCollectionMutex(instance));
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assertSame(getSyncCollectionMutex(instance.subSet("Charlie", "Echo")), getSyncCollectionMutex(instance));
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assertSame(getSyncCollectionMutex(instance.subSet("Charlie", true, "Echo", true)), getSyncCollectionMutex(instance));
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}
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@Test(dataProvider = "Maps")
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public void testMaps(Map<String, String> instance) {
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assertSame(getSyncCollectionMutex(instance.entrySet()), getSyncMapMutex(instance));
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assertSame(getSyncCollectionMutex(instance.keySet()), getSyncMapMutex(instance));
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assertSame(getSyncCollectionMutex(instance.values()), getSyncMapMutex(instance));
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}
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@Test(dataProvider = "SortedMaps")
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public void testSortedMaps(SortedMap<String, String> instance) {
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assertSame(getSyncCollectionMutex(instance.entrySet()), getSyncMapMutex(instance));
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assertSame(getSyncCollectionMutex(instance.keySet()), getSyncMapMutex(instance));
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assertSame(getSyncCollectionMutex(instance.values()), getSyncMapMutex(instance));
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assertSame(getSyncMapMutex(instance.headMap("Echo")), getSyncMapMutex(instance));
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assertSame(getSyncMapMutex(instance.tailMap("Charlie")), getSyncMapMutex(instance));
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assertSame(getSyncMapMutex(instance.subMap("Charlie", "Echo")), getSyncMapMutex(instance));
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}
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@Test(dataProvider = "NavigableMaps")
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public void testNavigableMaps(NavigableMap<String, String> instance) {
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assertSame(getSyncMapMutex(instance.descendingMap()), getSyncMapMutex(instance));
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assertSame(getSyncCollectionMutex(instance.entrySet()), getSyncMapMutex(instance));
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assertSame(getSyncCollectionMutex(instance.keySet()), getSyncMapMutex(instance));
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assertSame(getSyncCollectionMutex(instance.descendingKeySet()), getSyncMapMutex(instance));
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assertSame(getSyncCollectionMutex(instance.values()), getSyncMapMutex(instance));
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assertSame(getSyncMapMutex(instance.headMap("Echo")), getSyncMapMutex(instance));
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assertSame(getSyncMapMutex(instance.headMap("Echo", true)), getSyncMapMutex(instance));
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assertSame(getSyncMapMutex(instance.tailMap("Charlie")), getSyncMapMutex(instance));
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assertSame(getSyncMapMutex(instance.tailMap("Charlie", true)), getSyncMapMutex(instance));
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assertSame(getSyncMapMutex(instance.subMap("Charlie", true, "Echo", true)), getSyncMapMutex(instance));
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assertSame(getSyncMapMutex(instance.subMap("Charlie", true, "Echo", true)), getSyncMapMutex(instance));
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}
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@DataProvider(name = "Collections", parallel = true)
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public static Iterator<Object[]> collectionProvider() {
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return makeCollections().iterator();
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}
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@DataProvider(name = "Lists", parallel = true)
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public static Iterator<Object[]> listProvider() {
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return makeLists().iterator();
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}
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@DataProvider(name = "Sets", parallel = true)
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public static Iterator<Object[]> setProvider() {
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return makeSets().iterator();
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}
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@DataProvider(name = "SortedSets", parallel = true)
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public static Iterator<Object[]> sortedsetProvider() {
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return makeSortedSets().iterator();
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}
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@DataProvider(name = "NavigableSets", parallel = true)
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public static Iterator<Object[]> navigablesetProvider() {
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return makeNavigableSets().iterator();
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}
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@DataProvider(name = "Maps", parallel = true)
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public static Iterator<Object[]> mapProvider() {
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return makeMaps().iterator();
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}
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@DataProvider(name = "SortedMaps", parallel = true)
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public static Iterator<Object[]> sortedmapProvider() {
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return makeSortedMaps().iterator();
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}
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@DataProvider(name = "NavigableMaps", parallel = true)
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public static Iterator<Object[]> navigablemapProvider() {
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return makeNavigableMaps().iterator();
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}
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private static final Collection<String> BASE_COLLECTION = Collections.unmodifiableCollection(
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Arrays.asList("Alpha", "Bravo", "Charlie", "Delta", "Echo", "Foxtrot", "Golf")
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);
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private static final Map<String, String> BASE_MAP;
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static {
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Map<String, String> map = new HashMap<>();
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for(String each : BASE_COLLECTION) {
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map.put(each, "*" + each + "*");
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}
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BASE_MAP = Collections.unmodifiableMap(map);
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}
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public static Collection<Object[]> makeCollections() {
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Collection<Object[]> instances = new ArrayList<>();
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instances.add(new Object[] {Collections.synchronizedCollection(new ArrayList<>(BASE_COLLECTION))});
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instances.addAll(makeLists());
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return instances;
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}
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public static Collection<Object[]> makeLists() {
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Collection<Object[]> instances = new ArrayList<>();
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instances.add(new Object[] {Collections.synchronizedList(new ArrayList<>(BASE_COLLECTION))});
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instances.add(new Object[] {Collections.synchronizedList(new ArrayList<>(BASE_COLLECTION)).subList(1, 2)});
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return instances;
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}
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public static Collection<Object[]> makeSets() {
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Collection<Object[]> instances = new ArrayList<>();
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instances.add(new Object[] {Collections.synchronizedSet(new TreeSet<>(BASE_COLLECTION))});
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instances.addAll(makeSortedSets());
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return instances;
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}
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public static Collection<Object[]> makeSortedSets() {
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Collection<Object[]> instances = new ArrayList<>();
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instances.add(new Object[] {Collections.synchronizedSortedSet(new TreeSet<>(BASE_COLLECTION))});
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instances.add(new Object[] {Collections.synchronizedSortedSet(new TreeSet<>(BASE_COLLECTION)).headSet("Foxtrot")});
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instances.add(new Object[] {Collections.synchronizedSortedSet(new TreeSet<>(BASE_COLLECTION)).tailSet("Bravo")});
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instances.add(new Object[] {Collections.synchronizedSortedSet(new TreeSet<>(BASE_COLLECTION)).subSet("Bravo", "Foxtrot")});
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instances.addAll(makeNavigableSets());
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return instances;
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}
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public static Collection<Object[]> makeNavigableSets() {
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Collection<Object[]> instances = new ArrayList<>();
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instances.add(new Object[] {Collections.synchronizedNavigableSet(new TreeSet<>(BASE_COLLECTION))});
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instances.add(new Object[] {Collections.synchronizedNavigableSet(new TreeSet<>(BASE_COLLECTION)).descendingSet().descendingSet()});
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instances.add(new Object[] {Collections.synchronizedNavigableSet(new TreeSet<>(BASE_COLLECTION)).headSet("Foxtrot")});
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instances.add(new Object[] {Collections.synchronizedNavigableSet(new TreeSet<>(BASE_COLLECTION)).headSet("Foxtrot", true)});
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instances.add(new Object[] {Collections.synchronizedNavigableSet(new TreeSet<>(BASE_COLLECTION)).tailSet("Bravo")});
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instances.add(new Object[] {Collections.synchronizedNavigableSet(new TreeSet<>(BASE_COLLECTION)).tailSet("Bravo", true)});
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instances.add(new Object[] {Collections.synchronizedNavigableSet(new TreeSet<>(BASE_COLLECTION)).subSet("Bravo", "Foxtrot")});
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instances.add(new Object[] {Collections.synchronizedNavigableSet(new TreeSet<>(BASE_COLLECTION)).subSet("Bravo", true, "Foxtrot", true)});
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return instances;
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}
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public static Collection<Object[]> makeMaps() {
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Collection<Object[]> instances = new ArrayList<>();
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instances.add(new Object[] {Collections.synchronizedMap(new HashMap<>(BASE_MAP))});
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instances.addAll(makeSortedMaps());
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return instances;
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}
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public static Collection<Object[]> makeSortedMaps() {
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Collection<Object[]> instances = new ArrayList<>();
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instances.add(new Object[] {Collections.synchronizedSortedMap(new TreeMap<>(BASE_MAP))});
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instances.add(new Object[] {Collections.synchronizedSortedMap(new TreeMap<>(BASE_MAP)).headMap("Foxtrot")});
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instances.add(new Object[] {Collections.synchronizedSortedMap(new TreeMap<>(BASE_MAP)).tailMap("Bravo")});
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instances.add(new Object[] {Collections.synchronizedSortedMap(new TreeMap<>(BASE_MAP)).subMap("Bravo", "Foxtrot")});
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instances.addAll(makeNavigableMaps());
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return instances;
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}
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public static Collection<Object[]> makeNavigableMaps() {
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Collection<Object[]> instances = new ArrayList<>();
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instances.add(new Object[] {Collections.synchronizedNavigableMap(new TreeMap<>(BASE_MAP))});
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instances.add(new Object[] {Collections.synchronizedNavigableMap(new TreeMap<>(BASE_MAP).descendingMap().descendingMap())});
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instances.add(new Object[] {Collections.synchronizedNavigableMap(new TreeMap<>(BASE_MAP)).headMap("Foxtrot")});
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instances.add(new Object[] {Collections.synchronizedNavigableMap(new TreeMap<>(BASE_MAP)).headMap("Foxtrot", true)});
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instances.add(new Object[] {Collections.synchronizedNavigableMap(new TreeMap<>(BASE_MAP)).tailMap("Bravo")});
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instances.add(new Object[] {Collections.synchronizedNavigableMap(new TreeMap<>(BASE_MAP)).tailMap("Bravo", true)});
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instances.add(new Object[] {Collections.synchronizedNavigableMap(new TreeMap<>(BASE_MAP)).subMap("Bravo", "Foxtrot")});
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instances.add(new Object[] {Collections.synchronizedNavigableMap(new TreeMap<>(BASE_MAP)).subMap("Bravo", true, "Foxtrot", true)});
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return instances;
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}
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private static Object getSyncCollectionMutex(Collection<?> from) {
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try {
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Class<?> synchronizedCollectionClazz = Class.forName("java.util.Collections$SynchronizedCollection");
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Field f = synchronizedCollectionClazz.getDeclaredField("mutex");
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f.setAccessible(true);
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return f.get(from);
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} catch ( ClassNotFoundException | NoSuchFieldException | IllegalAccessException e) {
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throw new RuntimeException("Unable to get mutex field.", e);
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}
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}
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private static Object getSyncMapMutex(Map<?,?> from) {
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try {
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Class<?> synchronizedMapClazz = Class.forName("java.util.Collections$SynchronizedMap");
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Field f = synchronizedMapClazz.getDeclaredField("mutex");
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f.setAccessible(true);
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return f.get(from);
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} catch ( ClassNotFoundException | NoSuchFieldException | IllegalAccessException e) {
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throw new RuntimeException("Unable to get mutex field.", e);
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}
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}
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}
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