T6986895.java revision 2933:49d207bf704d 
1/*
2 * Copyright (c) 2011, 2015, 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 6986895
27 * @summary compiler gives misleading message for no input files
28 * @modules jdk.compiler
29 */
30
31import java.io.*;
32import java.util.*;
33
34public class T6986895 {
35    public static void main(String... args) throws Exception {
36        new T6986895().run();
37    }
38
39    String noSourceFiles = "no source files";
40    String noSourceFilesOrClasses = "no source files or class names";
41
42    void run() throws Exception {
43        Locale prev = Locale.getDefault();
44        try {
45            Locale.setDefault(Locale.ENGLISH);
46            test(noSourceFiles,           "-Werror");
47            test(noSourceFilesOrClasses,  "-Werror", "-Xprint");
48        } finally {
49            Locale.setDefault(prev);
50        }
51    }
52
53    void test(String expect, String... args) throws Exception {
54        System.err.println("Test " + expect + ": " + Arrays.asList(args));
55        StringWriter sw = new StringWriter();
56        PrintWriter pw = new PrintWriter(sw);
57        int rc = com.sun.tools.javac.Main.compile(args, pw);
58        pw.close();
59        System.err.println("compilation failed; rc=" + rc);
60        String out = sw.toString();
61        if (!out.isEmpty())
62            System.err.println(out);
63        if (!out.contains(expect))
64            throw new Exception("expected text not found: " + expect);
65        System.err.println();
66    }
67}
68