langtools/test/tools/javac/foreach/ListOfListTest.java
author duke
Sat, 01 Dec 2007 00:00:00 +0000
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/*
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 * Copyright 2003 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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 * CA 95054 USA or visit www.sun.com if you need additional information or
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 * have any questions.
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 */
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/*
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 * @test
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 * @bug 4915435
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 * @summary NullPointerError in Resolve.findMethod() with foreach vs generics
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 * @author gafter
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 *
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 * @compile -source 1.5 ListOfListTest.java
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 * @run main ListOfListTest
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 */
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import java.util.List;
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import java.util.ArrayList;
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public class ListOfListTest {
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    public static void main(String[] argv) {
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        List<List<Integer>> ll = new ArrayList<List<Integer>>();
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        List<Integer> il = new ArrayList<Integer>();
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        ll.add(il);
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        il.add(1);
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        int sum = 0;
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        for (Integer i : ll.get(0)) {
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            sum = identity(sum) + i;
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        }
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        if (sum != 1) throw new Error(""+sum);
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        enumsToo();
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    }
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    static int identity(Integer i) {
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        switch (i) {
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        case 0: return 0;
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        default: return i;
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        }
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    }
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    enum E { a, b, c, d, e };
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    static class Box<T> {
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        Box(T t) { this.t = t; }
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        T t;
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        T get() { return t; }
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    }
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    static void enumsToo() {
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        Box<E> box = new Box<E>(E.c);
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        switch (box.get()) {
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        case a: throw new Error();
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        case c: break;
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        default: throw new Error();
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        }
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        Box<Integer> boxi = new Box<Integer>(12);
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        switch (boxi.get()) {
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        case 0: throw new Error();
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        case 12: break;
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        default: throw new Error();
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        }
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    }
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}