1/*
2 * Copyright (c) 2010, 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 6942649
27 * @summary add hidden option to identify location and version of javac classes
28 * @modules jdk.compiler
29 */
30
31import java.io.*;
32
33public class T6942649 {
34    public static void main(String... args) throws Exception {
35        new T6942649().run();
36    }
37
38    void run() throws Exception {
39        test("-XDshowClass", "com.sun.tools.javac.Main", false);
40        test("-XDshowClass=com.sun.tools.javac.util.Log", "com.sun.tools.javac.util.Log", false);
41    }
42
43    void test(String opt, String clazz, boolean checkLocation) throws Exception {
44        System.err.println("test " + opt);
45        StringWriter sw = new StringWriter();
46        PrintWriter pw = new PrintWriter(sw);
47        int rc = com.sun.tools.javac.Main.compile(new String[] { opt }, pw);
48        pw.close();
49        String out = sw.toString();
50        System.err.println("javac rc=" + rc + "\n" + out);
51
52        if (!out.contains(clazz))
53            throw new Exception("class name not found in output");
54
55        // (JDK 9) We can no longer guarantee to be able to show a URL for the
56        // location of the class, especially when the class is in the system image
57        if (checkLocation) {
58            int lastDot = clazz.lastIndexOf(".");
59            if (!out.contains(clazz.substring(lastDot + 1) + ".class"))
60                throw new Exception("location of class not found in output");
61        }
62
63        if (!out.contains("MD5 checksum: "))
64            throw new Exception("checksum not found in output");
65    }
66}
67