NoJavaLangTest.java revision 3294:9adfb22ff08f 
1/*
2 * Copyright (c) 2013, 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 4263768 4785453
27 * @summary Verify that the compiler does not crash when java.lang is not
28 * @library /tools/lib
29 * @modules jdk.compiler/com.sun.tools.javac.api
30 *          jdk.compiler/com.sun.tools.javac.file
31 *          jdk.compiler/com.sun.tools.javac.main
32 *          jdk.jdeps/com.sun.tools.javap
33 * @build ToolBox
34 * @run main NoJavaLangTest
35 */
36
37import java.nio.file.*;
38
39public class NoJavaLangTest {
40
41    private static final String noJavaLangSrc =
42        "public class NoJavaLang {\n" +
43        "    private String s;\n" +
44        "\n" +
45        "    public String s() {\n" +
46        "        return s;\n" +
47        "    }\n" +
48        "}";
49
50    private static final String compilerErrorMessage =
51        "Fatal Error: Unable to find package java.lang in classpath or bootclasspath";
52
53    public static void main(String[] args) throws Exception {
54        new NoJavaLangTest().run();
55    }
56
57    final ToolBox tb = new ToolBox();
58
59    void run() throws Exception {
60        testStandard();
61        testBootClassPath();
62        testModulePath();
63    }
64
65    // sanity check, with java.lang available
66    void testStandard() {
67        tb.new JavacTask()
68                .sources(noJavaLangSrc)
69                .run();
70    }
71
72
73    // test with bootclasspath, for as long as its around
74    void testBootClassPath() {
75        String[] bcpOpts = { "-Xlint:-options", "-source", "8", "-bootclasspath", "." };
76        test(bcpOpts, compilerErrorMessage);
77    }
78
79    // test with module path
80    void testModulePath() throws Exception {
81        // need to ensure there is an empty java.base to avoid different error message
82        Files.createDirectories(Paths.get("modules/java.base"));
83        tb.new JavacTask()
84                .sources("module java.base { }")
85                .outdir("modules/java.base")
86                .run();
87
88        // ideally we'd have a better message for this case
89        String[] mpOpts = { "-system", "none", "-modulepath", "modules" };
90        test(mpOpts, compilerErrorMessage);
91    }
92
93    private void test(String[] options, String expect) {
94        System.err.println("Testing " + java.util.Arrays.toString(options));
95
96        String out = tb.new JavacTask()
97                .options(options)
98                .sources(noJavaLangSrc)
99                .run(ToolBox.Expect.FAIL, 3)
100                .writeAll()
101                .getOutput(ToolBox.OutputKind.DIRECT);
102
103        if (!out.trim().equals(expect)) {
104            throw new AssertionError("javac generated error output is not correct");
105        }
106
107        System.err.println("OK");
108    }
109
110}
111