1 /*

     2  * Copyright (c) 2018, 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 import java.net.URLClassLoader;

    25 

    26 /*

    27  * This class is loaded by the custom URLClassLoader, and then calls

    28  * Class.forName() with the protection domain for the checkPackageAccess

    29  * call created from the code source jar file.

    30  */

    31 public class ClassForName {

    32     static {

    33         if (!(ClassForName.class.getClassLoader() instanceof URLClassLoader)) {

    34             throw new RuntimeException("Supposed to be loaded by URLClassLoader");

    35         }

    36     }

    37 

    38     public ClassForName() {

    39         try {

    40             // class_loader = URLClassLoader, protection_domain = ClassForName.getProtectionDomain()

    41             Class.forName(java.util.List.class.getName(), false,

    42                           ClassLoader.getSystemClassLoader());

    43         } catch (Throwable e) {

    44             e.printStackTrace();

    45         }

    46     }

    47 }