test/tools/javac/foreach/ListOfListTest.java

Wed, 23 Apr 2008 17:10:03 +0100

author
mcimadamore
date
Wed, 23 Apr 2008 17:10:03 +0100
changeset 33
ec29a1a284ca
parent 1
9a66ca7c79fa
child 289
84061bd68019
permissions
-rw-r--r--

6682380: Foreach loop with generics inside finally block crashes javac with -target 1.5
Summary: A missing type-erasure in Lower.java causes the compiler to crash since JDK6
Reviewed-by: jjg

     1 /*
     2  * Copyright 2003 Sun Microsystems, Inc.  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
    16  * 2 along with this work; if not, write to the Free Software Foundation,
    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    18  *
    19  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
    20  * CA 95054 USA or visit www.sun.com if you need additional information or
    21  * have any questions.
    22  */
    24 /*
    25  * @test
    26  * @bug 4915435
    27  * @summary NullPointerError in Resolve.findMethod() with foreach vs generics
    28  * @author gafter
    29  *
    30  * @compile -source 1.5 ListOfListTest.java
    31  * @run main ListOfListTest
    32  */
    34 import java.util.List;
    35 import java.util.ArrayList;
    37 public class ListOfListTest {
    39     public static void main(String[] argv) {
    40         List<List<Integer>> ll = new ArrayList<List<Integer>>();
    41         List<Integer> il = new ArrayList<Integer>();
    42         ll.add(il);
    43         il.add(1);
    44         int sum = 0;
    45         for (Integer i : ll.get(0)) {
    46             sum = identity(sum) + i;
    47         }
    49         if (sum != 1) throw new Error(""+sum);
    51         enumsToo();
    52     }
    54     static int identity(Integer i) {
    55         switch (i) {
    56         case 0: return 0;
    57         default: return i;
    58         }
    59     }
    61     enum E { a, b, c, d, e };
    63     static class Box<T> {
    64         Box(T t) { this.t = t; }
    65         T t;
    66         T get() { return t; }
    67     }
    69     static void enumsToo() {
    70         Box<E> box = new Box<E>(E.c);
    71         switch (box.get()) {
    72         case a: throw new Error();
    73         case c: break;
    74         default: throw new Error();
    75         }
    76         Box<Integer> boxi = new Box<Integer>(12);
    77         switch (boxi.get()) {
    78         case 0: throw new Error();
    79         case 12: break;
    80         default: throw new Error();
    81         }
    82     }
    83 }

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