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
6  * under the terms of the GNU General Public License version 2 only, as
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 import java.util.*;
31 
32 @SuppressWarnings({"serial","unchecked"})
33 public class Bug6533203 {
test(String[] args)34     void test(String[] args) throws Throwable {
35         final List<Integer> superstitious = new ArrayList<Integer>() {
36             public void add(int index, Integer i) {
37                 if (i == 13) throw new Error("unlucky");
38                 else super.add(index, i); }};
39         final ListIterator it = superstitious.listIterator(0);
40         equal(it.nextIndex(), 0);
41         THROWS(Error.class, new F(){void f(){it.add(13);}});
42         equal(it.nextIndex(), 0);
43     }
44 
45     //--------------------- Infrastructure ---------------------------
46     volatile int passed = 0, failed = 0;
pass()47     void pass() {passed++;}
fail()48     void fail() {failed++; Thread.dumpStack();}
fail(String msg)49     void fail(String msg) {System.out.println(msg); fail();}
unexpected(Throwable t)50     void unexpected(Throwable t) {failed++; t.printStackTrace();}
check(boolean cond)51     void check(boolean cond) {if (cond) pass(); else fail();}
equal(Object x, Object y)52     void equal(Object x, Object y) {
53         if (x == null ? y == null : x.equals(y)) pass();
54         else fail(x + " not equal to " + y);}
main(String[] args)55     public static void main(String[] args) throws Throwable {
56         new Bug6533203().instanceMain(args);}
instanceMain(String[] args)57     void instanceMain(String[] args) throws Throwable {
58         try {test(args);} catch (Throwable t) {unexpected(t);}
59         System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed);
60         if (failed > 0) throw new AssertionError("Some tests failed");}
f()61     abstract class F {abstract void f() throws Throwable;}
THROWS(Class<? extends Throwable> k, F... fs)62     void THROWS(Class<? extends Throwable> k, F... fs) {
63         for (F f : fs)
64             try {f.f(); fail("Expected " + k.getName() + " not thrown");}
65             catch (Throwable t) {
66                 if (k.isAssignableFrom(t.getClass())) pass();
67                 else unexpected(t);}}
68 }
69