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/* |
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* Copyright (c) 1999, 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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/* |
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* @test |
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* @bug 4189641 |
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* @summary Wrapping a null collection/array should blow up sooner |
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* rather than later |
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*/ |
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|
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import java.util.*; |
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|
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public class WrappedNull { |
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public static void main(String argv[]) throws Exception { |
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boolean testSucceeded = false; |
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try{ |
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List l = Arrays.asList(null); |
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} |
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catch (NullPointerException e) { |
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testSucceeded = true; |
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} |
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if (!testSucceeded) |
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throw new Exception("Arrays.asList"); |
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|
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testSucceeded = false; |
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try{ |
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Collection c = Collections.unmodifiableCollection(null); |
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} |
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catch (NullPointerException e) { |
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testSucceeded = true; |
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} |
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if (!testSucceeded) |
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throw new Exception("unmodifiableCollection"); |
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|
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testSucceeded = false; |
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try{ |
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Set c = Collections.unmodifiableSet(null); |
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} |
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catch (NullPointerException e) { |
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testSucceeded = true; |
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} |
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if (!testSucceeded) |
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throw new Exception("unmodifiableSet"); |
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|
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testSucceeded = false; |
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try{ |
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List c = Collections.unmodifiableList(null); |
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} |
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catch (NullPointerException e) { |
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testSucceeded = true; |
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} |
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if (!testSucceeded) |
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throw new Exception("unmodifiableList"); |
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|
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testSucceeded = false; |
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try{ |
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Map c = Collections.unmodifiableMap(null); |
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} |
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catch (NullPointerException e) { |
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testSucceeded = true; |
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} |
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if (!testSucceeded) |
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throw new Exception("unmodifiableMap"); |
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|
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testSucceeded = false; |
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try{ |
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SortedSet c = Collections.unmodifiableSortedSet(null); |
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} |
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catch (NullPointerException e) { |
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testSucceeded = true; |
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} |
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if (!testSucceeded) |
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throw new Exception("unmodifiableSortedSet"); |
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|
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testSucceeded = false; |
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try{ |
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SortedMap c = Collections.unmodifiableSortedMap(null); |
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} |
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catch (NullPointerException e) { |
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testSucceeded = true; |
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} |
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if (!testSucceeded) |
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throw new Exception("unmodifiableSortedMap"); |
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|
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testSucceeded = false; |
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try{ |
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Collection c = Collections.synchronizedCollection(null); |
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} |
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catch (NullPointerException e) { |
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testSucceeded = true; |
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} |
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if (!testSucceeded) |
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throw new Exception("synchronizedCollection"); |
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|
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testSucceeded = false; |
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try{ |
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Set c = Collections.synchronizedSet(null); |
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} |
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catch (NullPointerException e) { |
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testSucceeded = true; |
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} |
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if (!testSucceeded) |
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throw new Exception("synchronizedSet"); |
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|
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testSucceeded = false; |
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try{ |
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List c = Collections.synchronizedList(null); |
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} |
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catch (NullPointerException e) { |
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testSucceeded = true; |
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} |
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if (!testSucceeded) |
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throw new Exception("synchronizedList"); |
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|
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testSucceeded = false; |
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try{ |
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Map c = Collections.synchronizedMap(null); |
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} |
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catch (NullPointerException e) { |
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testSucceeded = true; |
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} |
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if (!testSucceeded) |
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throw new Exception("synchronizedMap"); |
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|
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testSucceeded = false; |
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try{ |
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SortedSet c = Collections.synchronizedSortedSet(null); |
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} |
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catch (NullPointerException e) { |
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testSucceeded = true; |
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} |
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if (!testSucceeded) |
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throw new Exception("synchronizedSortedSet"); |
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|
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testSucceeded = false; |
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try{ |
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SortedMap c = Collections.synchronizedSortedMap(null); |
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} |
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catch (NullPointerException e) { |
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testSucceeded = true; |
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} |
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if (!testSucceeded) |
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throw new Exception("synchronizedSortedMap"); |
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|
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// Make sure that non-null arguments don't throw exc. |
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List l = Arrays.asList(new Object[0]); |
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Collection c = Collections.unmodifiableCollection( |
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Collections.EMPTY_SET); |
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Set s = Collections.unmodifiableSet(Collections.EMPTY_SET); |
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l = Collections.unmodifiableList(Collections.EMPTY_LIST); |
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Map m = Collections.unmodifiableMap(Collections.EMPTY_MAP); |
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SortedSet ss = Collections.unmodifiableSortedSet(new TreeSet()); |
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SortedMap sm = Collections.unmodifiableSortedMap(new TreeMap()); |
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|
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c = Collections.synchronizedCollection(Collections.EMPTY_SET); |
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s = Collections.synchronizedSet(Collections.EMPTY_SET); |
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l = Collections.synchronizedList(Collections.EMPTY_LIST); |
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m = Collections.synchronizedMap(Collections.EMPTY_MAP); |
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ss = Collections.synchronizedSortedSet(new TreeSet()); |
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sm = Collections.synchronizedSortedMap(new TreeMap()); |
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} |
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} |
