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/* |
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* Copyright (c) 2019, 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 8234423 |
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* @summary Modifying ArrayList.subList().subList() resets modCount of subList |
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*/ |
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|
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import java.util.ArrayList; |
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import java.util.ConcurrentModificationException; |
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|
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public class SubListModCount { |
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public static void main(String[] args) { |
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int failures = 0; |
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var root = new ArrayList<Integer>(); |
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var subList = root.subList(0, 0); |
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root.add(42); |
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try { |
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subList.size(); |
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failures++; |
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System.out.println("Accessing subList"); |
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} catch (ConcurrentModificationException expected) { |
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} |
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var subSubList = subList.subList(0, 0); |
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try { |
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subSubList.size(); |
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failures++; |
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System.out.println("Accessing subList.subList"); |
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} catch (ConcurrentModificationException expected) { |
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} |
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try { |
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subSubList.add(42); |
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failures++; |
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System.out.println("Modifying subList.subList"); |
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} catch (ConcurrentModificationException expected) { |
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} |
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try { |
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subList.size(); |
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failures++; |
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System.out.println("Accessing subList again"); |
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} catch (ConcurrentModificationException expected) { |
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} |
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if (failures > 0) { |
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throw new AssertionError(failures + " tests failed"); |
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} |
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} |
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} |
