1 /*

     2  * Copyright 1998 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  */

    23 

    24 /* @test

    25    @bug 4135104

    26    @summary If a badly behaved ClassLoader returns null but doesn't

    27             raise an exception, the VM core dumps.

    28 */

    29 

    30 

    31 public class ExceptionHidingLoader extends ClassLoader {

    32 

    33     protected Class findClass(String name) throws ClassNotFoundException {

    34         return null;

    35     }

    36 

    37     public static void main(String[] args) throws Exception {

    38         boolean exception = false;

    39 

    40         try {

    41             Class.forName("aha", false, new ExceptionHidingLoader());

    42         } catch (ClassNotFoundException e) {

    43             /* VM was smart enough to detect the problem and raise an

    44                exception. */

    45             exception = true;

    46         }

    47         if (!exception) {

    48             throw new Exception("Bogus loader behavior not being corrected");

    49         }

    50     }

    51 

    52 }