1 /*

     2  * Copyright (c) 2017, 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

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    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

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    23 

    24 /*

    25  * @test

    26  * @bug 8176147

    27  * @summary Throw ClassFormatError exception for multiple Signature attributes

    28  * @compile DupSignatureAttrs.jcod

    29  * @run main TestDupSignatureAttr

    30  */

    31 

    32 public class TestDupSignatureAttr {

    33     public static void main(String args[]) throws Throwable {

    34 

    35         System.out.println("Regression test for bug 8176147");

    36 

    37         String[] badClasses = new String[] {

    38             "DupClassSigAttrs",

    39             "DupMthSigAttrs",

    40             "DupFldSigAttrs",

    41         };

    42         String[] messages = new String[] {

    43             "Multiple Signature attributes in class file",

    44             "Multiple Signature attributes for method",

    45             "Multiple Signature attributes for field",

    46         };

    47 

    48         for (int x = 0; x < badClasses.length; x++) {

    49             try {

    50                 Class newClass = Class.forName(badClasses[x]);

    51                 throw new RuntimeException("Expected ClassFormatError exception not thrown");

    52             } catch (java.lang.ClassFormatError e) {

    53                 if (!e.getMessage().contains(messages[x])) {

    54                     throw new RuntimeException("Wrong ClassFormatError exception thrown: " +

    55                                                e.getMessage());

    56                 }

    57             }

    58         }

    59 

    60         // Multiple Signature attributes but no duplicates.

    61         Class newClass = Class.forName("OkaySigAttrs");

    62     }

    63 }