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

    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 8046171

    27  * @summary Setup nestmate calls to private methods then use

    28  *          modified jcod classes to introduce errors. Test with

    29  *          and without verification enabled

    30  * @compile TestInvokeErrors.java

    31  * @compile MissingMethod.jcod

    32  *          MissingMethodWithSuper.jcod

    33  *          MissingNestHost.jcod

    34  * @run main TestInvokeErrors true

    35  * @run main/othervm -Xverify:none TestInvokeErrors false

    36  */

    37 

    38 public class TestInvokeErrors {

    39 

    40     static class Nested {

    41         private void priv_invoke() {

    42             System.out.println("Nested::priv_invoke");

    43         }

    44     }

    45 

    46     static class MissingMethod {

    47         // jcod version will rename this method to not_priv_invoke

    48         private void priv_invoke() {

    49             System.out.println("MissingMethod::priv_invoke");

    50         }

    51     }

    52 

    53     static class MissingMethodWithSuper extends Nested {

    54         // jcod version will rename this method to not_priv_invoke

    55         private void priv_invoke() {

    56             System.out.println("MissingMethodWithSuper::priv_invoke");

    57         }

    58     }

    59 

    60     static class MissingNestHost {

    61         // jcod version will change NestHost to a non-existent class

    62         private void priv_invoke() {

    63             System.out.println("MissingNestHost::priv_invoke");

    64         }

    65     }

    66 

    67     // Helper class adds a level of indirection to avoid the main class

    68     // failing verification if these tests are written directly in main.

    69     // That can only happen if using invokespecial for nestmate invocation.

    70     static class Helper {

    71         static void doTest() {

    72             try {

    73                 MissingNestHost m = new MissingNestHost();

    74                 m.priv_invoke();

    75                 throw new Error("Unexpected success invoking MissingNestHost.priv_invoke");

    76             }

    77             catch (NoClassDefFoundError ncdfe) {

    78                 System.out.println("Got expected exception:" + ncdfe);

    79             }

    80         }

    81     }

    82 

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

    84         // some errors change depending on whether they are caught by the

    85         // verifier first

    86         boolean verifying = Boolean.parseBoolean(args[0]);

    87         System.out.println("Verification is " +

    88                            (verifying ? "enabled" : "disabled"));

    89 

    90         try {

    91             MissingMethod m = new MissingMethod();

    92             m.priv_invoke();

    93             throw new Error("Unexpected success invoking MissingMethod.priv_invoke");

    94         }

    95         catch (NoSuchMethodError nsme) {

    96             System.out.println("Got expected exception:" + nsme);

    97         }

    98 

    99         try {

   100             MissingMethodWithSuper m = new MissingMethodWithSuper();

   101             m.priv_invoke();

   102             throw new Error("Unexpected success invoking MissingMethodWithSuper.priv_invoke");

   103         }

   104         catch (NoSuchMethodError nsme) {

   105             System.out.println("Got expected exception:" + nsme);

   106         }

   107 

   108         // Verification of Helper will trigger the nestmate access check failure

   109         try {

   110             Helper.doTest();

   111         }

   112         catch (NoClassDefFoundError ncdfe) {

   113             if (verifying)

   114                 System.out.println("Got expected exception:" + ncdfe);

   115             else

   116                 throw new Error("Unexpected error loading Helper class with verification disabled");

   117         }

   118     }

   119 }