jdk8-mips64-public/langtools: test/tools/javac/scope/RemoveSymbolTest.java@29ef5ee31b3d

     1 /*

     2  * Copyright (c) 2015, 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 8080842

    27  * @summary Ensure Scope impl can cope with remove() when a field and method share the name.

    28  * @run main RemoveSymbolTest

    29  */

    31 import java.util.Iterator;

    32 import java.util.LinkedList;

    34 public class RemoveSymbolTest<W> implements Iterable<W> {

    35     static class Widget {

    36         private String name;

    37         Widget(String s) { name = s; }

    38         @Override public String toString() { return name; }

    39     }

    41     private LinkedList<W> data;

    42     // Instantiate an Iterable instance using a Lambda expression.

    43     // Causes ClassFormatError if a local variable of type Widget is named after one of the methods.

    44     private final Iterable<W> myIterator1 = () -> new Iterator<W>() {

    45         private W hasNext = null;

    46         private int index = 0;

    47         @Override public boolean hasNext() { return index < data.size(); }

    48         @Override public W next() { return data.get(index++); }

    49     };

    51     // Instantiate an Iterable instance using an anonymous class.

    52     // Always works fine regardless of the name of the local variable.

    53     private final Iterable<W> myIterator2 =

    54         new Iterable<W>() {

    55         @Override

    56         public Iterator<W> iterator() {

    57             return new Iterator<W>() {

    58                 private W hasNext = null;

    59                 private int index = 0;

    60                 @Override public boolean hasNext() { return index < data.size(); }

    61                 @Override public W next() { return data.get(index++); }

    62             };

    63         }

    64     };

    65     public RemoveSymbolTest() { data = new LinkedList<>(); }

    66     public void add(W e) { data.add(e); }

    67     @Override public String toString() { return data.toString(); }

    68     @Override public Iterator<W> iterator() { return myIterator1.iterator(); }

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

    70         RemoveSymbolTest<Widget> widgets = new RemoveSymbolTest<>();

    71         widgets.add(new Widget("W1"));

    72         widgets.add(new Widget("W2"));

    73         widgets.add(new Widget("W3"));

    74         System.out.println(".foreach() call: ");

    75         widgets.forEach(w -> System.out.println(w + " "));

    76     }

    77 }

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