| /* |
| * Copyright (c) 2005, 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @summary com.sun.tools.util.List.toArray violates Collection spec |
| * @modules jdk.compiler/com.sun.tools.javac.util |
| */ |
| |
| import com.sun.tools.javac.util.List; |
| |
| public class T6238612 { |
| public static void main(String... args) { |
| new T6238612().test(); |
| } |
| |
| boolean error = false; |
| |
| // exercise the List.toArray method for a variety of lists |
| void test() { |
| test(List.<String>nil()); |
| test(List.of("a")); |
| test(List.of("a", "b", "c")); |
| test(List.of("a", "b", "c", "d", "e", "f")); |
| if (error) |
| throw new Error("test failed"); |
| } |
| |
| // given a list, exercise the List.toArray method for a variety of arrays |
| void test(List<String> list) { |
| int n = list.size(); |
| if (n > 0) |
| test(list, new String[0]); |
| |
| if (n > 1) |
| test(list, new String[n - 1]); |
| |
| test(list, new String[n]); |
| test(list, new String[n + 1]); |
| test(list, new String[n + 5]); |
| } |
| |
| // test the List.toArray method for a particular list and array |
| void test(List<String> list, String[] array) { |
| String[] result = list.toArray(array); |
| |
| if (result.length < list.size()) { |
| error("returned array is too small; expected: " + list.size() + ", found: " + result.length); |
| return; |
| } |
| |
| if (list.size() <= array.length && result != array) |
| error("new array wrongly created"); |
| |
| int i = 0; |
| for (String s: list) |
| check(result, i++, s); |
| |
| if (i < result.length) |
| check(result, i, null); |
| } |
| |
| // check a specific element of an array |
| void check(String[] array, int i, String expected) { |
| if (!equal(array[i], expected)) |
| error("element " + i + " incorrect; expected: " + str(expected) + ", found: " + str(array[i])); |
| } |
| |
| // check if two strings are both null or are equal |
| boolean equal(String s1, String s2) { |
| return (s1 == null ? s2 == null : s1.equals(s2)); |
| } |
| |
| String str(String s) { |
| return (s == null ? "null" : '"' + s + '"'); |
| } |
| |
| void error(String message) { |
| System.err.println(message); |
| error = true; |
| } |
| } |