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) 2006, 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 6431879
27 * @summary TreePathSCanner(CompilationUnitTree tree, P p) overloading forces use of most specific type
28 */
30 import java.io.*;
31 import java.util.*;
32 import javax.tools.*;
33 import com.sun.source.tree.*;
34 import com.sun.source.util.*;
35 import com.sun.tools.javac.api.*;
37 public class T6431879 {
38 public static void main(String... args) throws IOException {
39 String testSrc = System.getProperty("test.src", ".");
40 String testClasses = System.getProperty("test.classes", ".");
41 JavacTool tool = JavacTool.create();
42 StandardJavaFileManager fm = tool.getStandardFileManager(null, null, null);
43 Iterable<? extends JavaFileObject> files =
44 fm.getJavaFileObjectsFromFiles(Arrays.asList(new File(testSrc, T6431879.class.getName()+".java")));
45 JavacTask task = tool.getTask(null, fm, null, null, null, files);
46 Iterable<? extends CompilationUnitTree> trees = task.parse();
47 TreeScanner<Void,Trees> dependencyScanner = new DependencyScanner();
48 Trees treeUtil = Trees.instance(task);
49 for (CompilationUnitTree unit : trees) {
50 //System.err.println("scan " + unit);
51 dependencyScanner.scan(unit, treeUtil);
52 }
54 }
56 private static class DependencyScanner<R,P> extends TreePathScanner<R,P> {
57 public R visitIdentifier(IdentifierTree tree, P p) {
58 //System.err.println(tree);
59 return null;
60 }
61 }
62 }