1 /*
2  * Copyright (c) 2007, Oracle and/or its affiliates. All rights reserved.
3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4  *
5  * This code is free software; you can redistribute it and/or modify it
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7  * published by the Free Software Foundation.
8  *
9  * This code is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12  * version 2 for more details (a copy is included in the LICENSE file that
13  * accompanied this code).
14  *
15  * You should have received a copy of the GNU General Public License version
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17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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22  */
23 
24 /*
25  * @test
26  * @bug 6533203
27  * @summary AbstractList.ListItr.add might corrupt iterator state if enclosing add throws
28  */
29 
30 package test.java.util.ArrayList;
31 
32 import java.util.ArrayList;
33 import java.util.List;
34 import java.util.ListIterator;
35 
36 @SuppressWarnings({"serial","unchecked"})
37 public class Bug6533203 {
38 
test(String[] args)39     void test(String[] args) throws Throwable {
40         final List<Integer> superstitious = new ArrayList<>() {
41             public void add(int index, Integer i) {
42                 if (i == 13) throw new Error("unlucky");
43                 else super.add(index, i); }};
44         final ListIterator it = superstitious.listIterator(0);
45         equal(it.nextIndex(), 0);
46         THROWS(Error.class, new F(){void f(){it.add(13);}});
47         equal(it.nextIndex(), 0);
48     }
49 
50     //--------------------- Infrastructure ---------------------------
51     volatile int passed = 0, failed = 0;
pass()52     void pass() {passed++;}
fail()53     void fail() {failed++; Thread.dumpStack();}
fail(String msg)54     void fail(String msg) {System.out.println(msg); fail();}
unexpected(Throwable t)55     void unexpected(Throwable t) {failed++; t.printStackTrace();}
check(boolean cond)56     void check(boolean cond) {if (cond) pass(); else fail();}
equal(Object x, Object y)57     void equal(Object x, Object y) {
58         if (x == null ? y == null : x.equals(y)) pass();
59         else fail(x + " not equal to " + y);}
main(String[] args)60     public static void main(String[] args) throws Throwable {
61         new Bug6533203().instanceMain(args);}
instanceMain(String[] args)62     void instanceMain(String[] args) throws Throwable {
63         try {test(args);} catch (Throwable t) {unexpected(t);}
64         System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed);
65         if (failed > 0) throw new AssertionError("Some tests failed");}
f()66     abstract class F {abstract void f() throws Throwable;}
THROWS(Class<? extends Throwable> k, F... fs)67     void THROWS(Class<? extends Throwable> k, F... fs) {
68         for (F f : fs)
69             try {f.f(); fail("Expected " + k.getName() + " not thrown");}
70             catch (Throwable t) {
71                 if (k.isAssignableFrom(t.getClass())) pass();
72                 else unexpected(t);}}
73 }
74