NPEDuplicateClassNamesTest.java revision 3969:7729c633b9f1 
1/*
2 * Copyright (c) 2017, 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 8174073
27 * @summary NPE caused by link reference to class
28 * @modules jdk.compiler/com.sun.tools.javac.api
29 *          jdk.compiler/com.sun.tools.javac.main
30 * @library /tools/lib
31 * @build toolbox.JavacTask toolbox.TestRunner toolbox.ToolBox
32 * @run main NPEDuplicateClassNamesTest
33 */
34
35import java.io.IOException;
36import java.nio.file.Files;
37import java.nio.file.Path;
38import java.nio.file.Paths;
39import java.util.Arrays;
40import java.util.List;
41import java.util.Objects;
42
43import toolbox.JavacTask;
44import toolbox.Task;
45import toolbox.TestRunner;
46import toolbox.ToolBox;
47
48public class NPEDuplicateClassNamesTest extends TestRunner {
49
50    public static void main(String... args) throws Exception {
51        NPEDuplicateClassNamesTest t = new NPEDuplicateClassNamesTest();
52        t.runTests();
53    }
54
55    private final ToolBox tb = new ToolBox();
56    private final String class1 =
57            "package com;\n" +
58            "/***/\n" +
59            "public class MyClass {}";
60    private final String class2 =
61            "package com;\n" +
62            "/**\n" +
63            " * The following link tag causes a NullPointerException: {@link Requirements}. \n" +
64            " */\n" +
65            "public class MyClass {}";
66
67    NPEDuplicateClassNamesTest() throws IOException {
68        super(System.err);
69    }
70
71    @Test
72    public void testDuplicateClassNames() throws IOException {
73        Path src = Paths.get("src");
74        Path one = src.resolve("one");
75        Path two = src.resolve("two");
76        Path classes = Paths.get("classes");
77        Files.createDirectories(classes);
78        tb.writeJavaFiles(one, class1);
79        tb.writeJavaFiles(two, class2);
80
81        List<String> expected = Arrays.asList(
82                "MyClass.java:5:8: compiler.err.duplicate.class: com.MyClass",
83                "MyClass.java:3:65: compiler.err.proc.messager: reference not found",
84                "2 errors");
85        List<String> output = new JavacTask(tb)
86                  .outdir(classes)
87                  .options("-XDrawDiagnostics", "-Xdoclint:all", "-XDdev")
88                  .files(tb.findJavaFiles(src))
89                  .run(Task.Expect.FAIL)
90                  .writeAll()
91                  .getOutputLines(Task.OutputKind.DIRECT);
92
93        if (!Objects.equals(output, expected)) {
94            throw new IllegalStateException("incorrect output; actual=" + output + "; expected=" + expected);
95        }
96    }
97}
98