1 /*

     2  * Copyright (c) 2003, 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 4421066

    27  * @summary Check a type parameter whose bound cycles back on itself.

    28  * @ignore API modifications

    29  * @library ../../lib

    30  * @modules jdk.javadoc

    31  * @compile  ../../lib/Tester.java Main.java

    32  * @run main Main

    33  */

    34 

    35 import java.io.IOException;

    36 import com.sun.javadoc.*;

    37 

    38 public class Main extends Tester.Doclet {

    39 

    40     private static final Tester tester = new Tester("Main", "pkg1");

    41 

    42     public static void main(String[] args) throws IOException {

    43         tester.run();

    44     }

    45 

    46     public static boolean run(DocletEnvironment root) {

    47         ClassDoc cd = root.classes()[0];

    48         System.out.println("*** " + cd);

    49         TypeVariable E = cd.typeParameters()[0];

    50         System.out.println("*** " + E);

    51         Type bound = E.bounds()[0];

    52         System.out.println("*** " + bound);

    53 

    54         // Verify that we have an instantiation of Enum<E>, and not

    55         // the generic interface.

    56         ParameterizedType enumE = (ParameterizedType)bound;

    57 

    58         if (enumE.asClassDoc() != cd) {

    59             throw new Error("Type declaration and type use don't match up.");

    60         } else {

    61             return true;

    62         }

    63     }

    64 }