DirectSupersOfErr.java revision 1465:b52a38d4536c 
1/*
2 * Copyright (c) 2006, 2010, 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 */
23
24/*
25 * @test
26 * @bug     6346973
27 * @summary directSupertypes(t) should not return t
28 * @author  Scott Seligman
29 * @library /tools/javac/lib
30 * @build   JavacTestingAbstractProcessor DirectSupersOfErr
31 * @compile -processor DirectSupersOfErr -proc:only C1.java
32 */
33
34import java.util.Set;
35import javax.annotation.processing.*;
36import javax.lang.model.element.*;
37import javax.lang.model.type.*;
38import javax.lang.model.util.*;
39import static javax.lang.model.util.ElementFilter.*;
40
41public class DirectSupersOfErr extends JavacTestingAbstractProcessor {
42    public boolean process(Set<? extends TypeElement> tes,
43                           RoundEnvironment round) {
44        if (round.processingOver()) return true;
45
46        for (TypeElement te : typesIn(round.getRootElements())) {
47            TypeMirror sup = te.getSuperclass();
48            for (TypeMirror supOfSup : types.directSupertypes(sup)) {
49                if (sup == supOfSup)
50                    throw new AssertionError("I'm my own supertype.");
51            }
52        }
53        return true;
54    }
55}
56