1/*
2 * Copyright (c) 2005, 2016, 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 6728697
27 * @summary tools/javac/versionOpt.sh fails on OpenJDK builds
28 * Test checks the version strings displayed by javac, using
29 * strings that come out of the Java runtime.
30 * @modules jdk.compiler
31 */
32
33import java.io.File;
34import java.io.PrintWriter;
35import java.io.StringWriter;
36import java.net.URL;
37
38public class VersionOpt {
39    public static void main(String... args) throws Exception {
40        new VersionOpt().run();
41    }
42
43    void run() throws Exception {
44        // Test functions by comparing the version string from javac against
45        // a "golden" version generated automatically from the underlying JVM.
46        // As such, it is only effective in testing the "standard" compiler,
47        // and not any development version being tested via --patch-modules.
48        // Check the version of the compiler being used, and let the test pass
49        // automatically if is is a development version.
50        Class<?> javacClass = com.sun.tools.javac.Main.class;
51        URL location = javacClass.getProtectionDomain().getCodeSource().getLocation();
52        if (!location.toString().equals("jrt:/jdk.compiler")) {
53            System.err.println("javac not found in system image: " + location);
54            System.err.println("rest of test skipped");
55            return;
56        }
57
58        System.out.println("javac found in " + location);
59
60        String javaVersion = System.getProperty("java.version");
61        String javaRuntimeVersion = System.getProperty("java.runtime.version");
62        System.out.println("java.version: " + javaVersion);
63        System.out.println("java.runtime.version: " + javaRuntimeVersion);
64
65        StringWriter sw = new StringWriter();
66        com.sun.tools.javac.Main.compile(new String[] { "-version" }, new PrintWriter(sw));
67        String javacVersion = sw.toString().trim();
68
69        sw = new StringWriter();
70        com.sun.tools.javac.Main.compile(new String[] { "-fullversion" }, new PrintWriter(sw));
71        String javacFullVersion = sw.toString().trim();
72        System.out.println("javac -version: " + javacVersion);
73        System.out.println("javac -fullversion: " + javacFullVersion);
74
75        checkEqual("javac -version", javacVersion, "javac " + javaVersion);
76        checkEqual("javac -fullversion", javacFullVersion, "javac full version \"" + javaRuntimeVersion + "\"");
77
78        if (errors > 0)
79            throw new Exception(errors + " errors found");
80    }
81
82    void checkEqual(String kind, String found, String expect) {
83        if (!found.equals(expect)) {
84            System.err.println("error: unexpected value for " + kind);
85            System.err.println("expect: >>" + expect + "<<");
86            System.err.println(" found: >>" + found + "<<");
87            errors++;
88        }
89    }
90
91    int errors;
92}
93