Mon, 01 Jul 2013 14:57:03 +0100
7034798: Ambiguity error for abstract method call is too eager
Summary: Javac should wait and see if ambiguous methods can be reconciled at the end of an overload resolution round
Reviewed-by: jjg, vromero
1 /*
2 * Copyright (c) 2005, 2013, 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 6306137
27 * @summary JSR 199: encoding option doesn't affect standard file manager
28 * @compile -encoding utf-8 T6306137.java
29 * @run main T6306137
30 * @author Peter von der Ah\u00e9
31 */
33 import java.io.File;
34 import java.io.IOException;
35 import java.nio.charset.Charset;
36 import java.nio.file.Files;
37 import java.util.ArrayList;
38 import java.util.Arrays;
39 import java.util.List;
40 import javax.tools.*;
41 import static java.nio.file.StandardOpenOption.*;
43 public class T6306137 {
44 boolean error;
45 final StandardJavaFileManager fm;
46 final JavaCompiler compiler;
47 Iterable<? extends JavaFileObject> files;
48 DiagnosticListener<JavaFileObject> dl;
49 final File testFile = new File("Utf8.java");
51 T6306137() throws IOException {
52 dl = new DiagnosticListener<JavaFileObject>() {
53 public void report(Diagnostic<? extends JavaFileObject> message) {
54 if (message.getKind() == Diagnostic.Kind.ERROR)
55 error = true;
56 System.out.println(message.getSource()
57 +":"+message.getStartPosition()+":"
58 +message.getStartPosition()+":"+message.getPosition());
59 System.out.println(message.toString());
60 System.out.format("Found problem: %s%n", message.getCode());
61 System.out.flush();
62 }
63 };
64 compiler = ToolProvider.getSystemJavaCompiler();
65 fm = compiler.getStandardFileManager(dl, null, null);
66 files =
67 fm.getJavaFileObjectsFromFiles(Arrays.asList(testFile));
68 createTestFile();
69 }
70 final void createTestFile() throws IOException {
71 List<String> scratch = new ArrayList<>();
72 scratch.add("// @author Peter von der Ah" + (char)0xe9);
73 scratch.add("class Utf8{}");
74 Files.write(testFile.toPath(), scratch, Charset.forName("UTF-8"),
75 CREATE, TRUNCATE_EXISTING);
76 }
77 void test(String encoding, boolean good) {
78 error = false;
79 Iterable<String> args = Arrays.asList("-source", "6", "-encoding", encoding, "-d", ".");
80 compiler.getTask(null, fm, dl, args, null, files).call();
81 if (error == good) {
82 if (error) {
83 throw new AssertionError("Error reported");
84 } else {
85 throw new AssertionError("No error reported");
86 }
87 }
88 }
90 public static void main(String[] args) throws IOException {
91 T6306137 self = new T6306137();
92 self.test("utf-8", true);
93 self.test("ascii", false);
94 self.test("utf-8", true);
95 }
96 }