1 /*

     2  * Copyright (c) 2010, 2013, 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  * JDK-8020809: Java adapter should not allow overriding of caller sensitive methods

    26  * 

    27  * @test

    28  * @run

    29  */

    30 

    31 // This test runs as trusted as we need the

    32 // "enableContextClassLoaderOverride" runtime permission.

    33 

    34 var T = Java.extend(java.lang.Thread, {

    35     getContextClassLoader: function() {

    36         // Since getContextClassLoader is caller sensitive, this won't

    37         // actually act as an override; it will be ignored. If we could

    38         // invoke it, it would be an error.

    39         throw new Error()

    40     }

    41 })

    42 

    43 // Retrieve the context ClassLoader on our Thread adapter, ensure the

    44 // method was not, in fact, overridden.

    45 var cl = (new T()).contextClassLoader

    46 

    47 print("cl is class loader: "  + (cl instanceof java.lang.ClassLoader))