jdk8-mips64-public/langtools: test/tools/javap/T4777949.java@4a48f3173534

     1 /*

     2  * Copyright (c) 2008, 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  */

    24 import java.io.*;

    25 import java.util.*;

    26 import javax.tools.*;

    27 import com.sun.tools.javap.*;

    29 /*

    30  * @test

    31  * @bug 4777949

    32  * @summary Warn javap usage on package with simple name

    33  */

    34 public class T4777949 {

    35     public static void main(String... args) throws Exception {

    36         new T4777949().run();

    37     }

    39     void run() throws Exception {

    40         File javaFile = writeTestFile();

    41         File classFile = compileTestFile(javaFile);

    43         test(".", "p.q.r.Test", false);

    44         test("p", "q.r.Test", true);

    45         test("p/q", "r.Test", true);

    46         test("p/q/r", "Test", true);

    47         test(".", "p.q.r.Test.Inner", false);

    48         test(".", "p.q.r.Test$Inner", false);

    49         test("p", "q.r.Test.Inner", true);

    50         test("p", "q.r.Test$Inner", true);

    52         if (errors > 0)

    53             throw new Exception(errors + " errors found");

    54     }

    56     void test(String classPath, String className, boolean expectWarnings) {

    57         List<Diagnostic<? extends JavaFileObject>> diags =

    58             javap(Arrays.asList("-classpath", classPath), Arrays.asList(className));

    59         boolean foundWarnings = false;

    60         for (Diagnostic<? extends JavaFileObject> d: diags) {

    61             if (d.getKind() == Diagnostic.Kind.WARNING)

    62                 foundWarnings = true;

    63         }

    64     }

    67     File writeTestFile() throws IOException {

    68         File f = new File("Test.java");

    69         PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(f)));

    70         out.println("package p.q.r;");

    71         out.println("class Test { class Inner { } }");

    72         out.close();

    73         return f;

    74     }

    76     File compileTestFile(File f) {

    77         int rc = com.sun.tools.javac.Main.compile(new String[] { "-d", ".", f.getPath() });

    78         if (rc != 0)

    79             throw new Error("compilation failed. rc=" + rc);

    80         String path = f.getPath();

    81         return new File(path.substring(0, path.length() - 5) + ".class");

    82     }

    84     List<Diagnostic<? extends JavaFileObject>> javap(List<String> args, List<String> classes) {

    85         DiagnosticCollector<JavaFileObject> dc = new DiagnosticCollector<JavaFileObject>();

    86         StringWriter sw = new StringWriter();

    87         PrintWriter pw = new PrintWriter(sw);

    88         JavaFileManager fm = JavapFileManager.create(dc, pw);

    89         JavapTask t = new JavapTask(pw, fm, dc, args, classes);

    90         boolean ok = t.run();

    92         List<Diagnostic<? extends JavaFileObject>> diags = dc.getDiagnostics();

    94         if (!ok)

    95             error("javap failed unexpectedly");

    97         System.err.println("args=" + args + " classes=" + classes + "\n"

    98                            + diags + "\n"

    99                            + sw);

   101         return diags;

   102     }

   104     void error(String msg) {

   105         System.err.println("error: " + msg);

   106         errors++;

   107     }

   109     int errors;

   110 }

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