jdk8-mips64-public/langtools: test/tools/javac/foreach/SuperfluousAbstract.java@959103a6100f

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http://hg.openjdk.java.net/jdk8u/jdk8u/langtools/
changeset: 2573:53ca196be1ae
tag: jdk8u25-b17

     1 /*

     2  * Copyright (c) 2003, 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

    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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    24 /*

    25  * @test

    26  * @bug 4912795

    27  * @summary AbstractMethodError throws if not redeclare abstract iterator() method

    28  * @author gafter

    29  */

    31 import java.util.AbstractCollection;

    32 import java.util.Collection;

    33 import java.util.Iterator;

    35 interface Q<E> extends Collection<E> {}

    37 abstract class AbstractQ<E> extends AbstractCollection<E> implements Q<E> {

    38     // Uncomment this to avoid the AbstractMethodError:

    39     //public abstract Iterator<E> iterator();

    40 }

    42 class ConcreteQ<E> extends AbstractQ<E> {

    43     public int size() { return 0; }

    44     public Iterator<E> iterator() { return null; }

    45 }

    47 public class SuperfluousAbstract {

    48     public static void main(String[] args) {

    49         try {

    50             Q<Integer> q = new ConcreteQ<Integer>() ;

    51             for (Integer i : q) {}

    52         }

    53         catch (AbstractMethodError e) {

    54             e.printStackTrace(System.err);

    55         }

    56         catch (NullPointerException e) {

    57             // expected, since iterator() returns null

    58         }

    59     }

    60 }

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