1/*
2 * Copyright (c) 2008, 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 4777949
27 * @summary Warn javap usage on package with simple name
28 * @modules jdk.jdeps/com.sun.tools.javap
29 */
30
31import java.io.*;
32import java.util.*;
33import javax.tools.*;
34import com.sun.tools.javap.*;
35
36public class T4777949 {
37    public static void main(String... args) throws Exception {
38        new T4777949().run();
39    }
40
41    void run() throws Exception {
42        File javaFile = writeTestFile();
43        File classFile = compileTestFile(javaFile);
44
45        test(".", "p.q.r.Test", false);
46        test("p", "q.r.Test", true);
47        test("p/q", "r.Test", true);
48        test("p/q/r", "Test", true);
49        test(".", "p.q.r.Test.Inner", false);
50        test(".", "p.q.r.Test$Inner", false);
51        test("p", "q.r.Test.Inner", true);
52        test("p", "q.r.Test$Inner", true);
53
54        if (errors > 0)
55            throw new Exception(errors + " errors found");
56    }
57
58    void test(String classPath, String className, boolean expectWarnings) {
59        List<Diagnostic<? extends JavaFileObject>> diags =
60            javap(Arrays.asList("-classpath", classPath), Arrays.asList(className));
61        boolean foundWarnings = false;
62        for (Diagnostic<? extends JavaFileObject> d: diags) {
63            if (d.getKind() == Diagnostic.Kind.WARNING)
64                foundWarnings = true;
65        }
66    }
67
68
69    File writeTestFile() throws IOException {
70        File f = new File("Test.java");
71        PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(f)));
72        out.println("package p.q.r;");
73        out.println("class Test { class Inner { } }");
74        out.close();
75        return f;
76    }
77
78    File compileTestFile(File f) {
79        int rc = com.sun.tools.javac.Main.compile(new String[] { "-d", ".", f.getPath() });
80        if (rc != 0)
81            throw new Error("compilation failed. rc=" + rc);
82        String path = f.getPath();
83        return new File(path.substring(0, path.length() - 5) + ".class");
84    }
85
86    List<Diagnostic<? extends JavaFileObject>> javap(List<String> args, List<String> classes) {
87        DiagnosticCollector<JavaFileObject> dc = new DiagnosticCollector<JavaFileObject>();
88        StringWriter sw = new StringWriter();
89        PrintWriter pw = new PrintWriter(sw);
90        JavaFileManager fm = JavapFileManager.create(dc, pw);
91        JavapTask t = new JavapTask(pw, fm, dc, args, classes);
92        int ok = t.run();
93
94        List<Diagnostic<? extends JavaFileObject>> diags = dc.getDiagnostics();
95
96        if (ok != 0)
97            error("javap failed unexpectedly");
98
99        System.err.println("args=" + args + " classes=" + classes + "\n"
100                           + diags + "\n"
101                           + sw);
102
103        return diags;
104    }
105
106    void error(String msg) {
107        System.err.println("error: " + msg);
108        errors++;
109    }
110
111    int errors;
112}
113
114