1 /*
2  * Copyright (C) 2017 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package art;
18 
19 import java.util.Base64;
20 
21 public class Test946 {
22 
23   static class Transform {
sayHi(Runnable r)24     public void sayHi(Runnable r) {
25       System.out.println("hello");
26       r.run();
27       System.out.println("goodbye");
28     }
29   }
30 
31   // static class Transform {
32   //   public void sayHi(Runnable r) {
33   //     System.out.println("Hello - Transformed");
34   //     r.run();
35   //     System.out.println("Goodbye - Transformed");
36   //   }
37   // }
38   private static final byte[] CLASS_BYTES = Base64.getDecoder().decode(
39     "yv66vgAAADQAKAoACAARCQASABMIABQKABUAFgsAFwAYCAAZBwAbBwAeAQAGPGluaXQ+AQADKClW" +
40     "AQAEQ29kZQEAD0xpbmVOdW1iZXJUYWJsZQEABXNheUhpAQAXKExqYXZhL2xhbmcvUnVubmFibGU7" +
41     "KVYBAApTb3VyY2VGaWxlAQAMVGVzdDk0Ni5qYXZhDAAJAAoHAB8MACAAIQEAE0hlbGxvIC0gVHJh" +
42     "bnNmb3JtZWQHACIMACMAJAcAJQwAJgAKAQAVR29vZGJ5ZSAtIFRyYW5zZm9ybWVkBwAnAQAVYXJ0" +
43     "L1Rlc3Q5NDYkVHJhbnNmb3JtAQAJVHJhbnNmb3JtAQAMSW5uZXJDbGFzc2VzAQAQamF2YS9sYW5n" +
44     "L09iamVjdAEAEGphdmEvbGFuZy9TeXN0ZW0BAANvdXQBABVMamF2YS9pby9QcmludFN0cmVhbTsB" +
45     "ABNqYXZhL2lvL1ByaW50U3RyZWFtAQAHcHJpbnRsbgEAFShMamF2YS9sYW5nL1N0cmluZzspVgEA" +
46     "EmphdmEvbGFuZy9SdW5uYWJsZQEAA3J1bgEAC2FydC9UZXN0OTQ2ACAABwAIAAAAAAACAAAACQAK" +
47     "AAEACwAAAB0AAQABAAAABSq3AAGxAAAAAQAMAAAABgABAAAABQABAA0ADgABAAsAAAA7AAIAAgAA" +
48     "ABeyAAISA7YABCu5AAUBALIAAhIGtgAEsQAAAAEADAAAABIABAAAAAcACAAIAA4ACQAWAAoAAgAP" +
49     "AAAAAgAQAB0AAAAKAAEABwAaABwACA==");
50   private static final byte[] DEX_BYTES = Base64.getDecoder().decode(
51     "ZGV4CjAzNQB0mzt6AAAAAAAAAAAAAAAAAAAAAAAAAAA8BAAAcAAAAHhWNBIAAAAAAAAAAHgDAAAX" +
52     "AAAAcAAAAAoAAADMAAAAAwAAAPQAAAABAAAAGAEAAAUAAAAgAQAAAQAAAEgBAADUAgAAaAEAAGgB" +
53     "AABwAQAAhwEAAJwBAAC1AQAAxAEAAOgBAAAIAgAAHwIAADMCAABJAgAAXQIAAHECAAB/AgAAigIA" +
54     "AI0CAACRAgAAngIAAKQCAACpAgAAsgIAALcCAAC+AgAAAwAAAAQAAAAFAAAABgAAAAcAAAAIAAAA" +
55     "CQAAAAoAAAALAAAADgAAAA4AAAAJAAAAAAAAAA8AAAAJAAAAyAIAAA8AAAAJAAAA0AIAAAgABAAS" +
56     "AAAAAAAAAAAAAAAAAAEAFQAAAAQAAgATAAAABQAAAAAAAAAGAAAAFAAAAAAAAAAAAAAABQAAAAAA" +
57     "AAAMAAAAaAMAADwDAAAAAAAABjxpbml0PgAVR29vZGJ5ZSAtIFRyYW5zZm9ybWVkABNIZWxsbyAt" +
58     "IFRyYW5zZm9ybWVkABdMYXJ0L1Rlc3Q5NDYkVHJhbnNmb3JtOwANTGFydC9UZXN0OTQ2OwAiTGRh" +
59     "bHZpay9hbm5vdGF0aW9uL0VuY2xvc2luZ0NsYXNzOwAeTGRhbHZpay9hbm5vdGF0aW9uL0lubmVy" +
60     "Q2xhc3M7ABVMamF2YS9pby9QcmludFN0cmVhbTsAEkxqYXZhL2xhbmcvT2JqZWN0OwAUTGphdmEv" +
61     "bGFuZy9SdW5uYWJsZTsAEkxqYXZhL2xhbmcvU3RyaW5nOwASTGphdmEvbGFuZy9TeXN0ZW07AAxU" +
62     "ZXN0OTQ2LmphdmEACVRyYW5zZm9ybQABVgACVkwAC2FjY2Vzc0ZsYWdzAARuYW1lAANvdXQAB3By" +
63     "aW50bG4AA3J1bgAFc2F5SGkABXZhbHVlAAAAAAEAAAAGAAAAAQAAAAcAAAAFAAcOAAcBAAcOAQgP" +
64     "AQMPAQgPAAEAAQABAAAA2AIAAAQAAABwEAMAAAAOAAQAAgACAAAA3QIAABQAAABiAAAAGwECAAAA" +
65     "biACABAAchAEAAMAYgAAABsBAQAAAG4gAgAQAA4AAAABAQCAgATsBQEBhAYAAAICARYYAQIDAhAE" +
66     "CBEXDQACAAAATAMAAFIDAABcAwAAAAAAAAAAAAAAAAAAEAAAAAAAAAABAAAAAAAAAAEAAAAXAAAA" +
67     "cAAAAAIAAAAKAAAAzAAAAAMAAAADAAAA9AAAAAQAAAABAAAAGAEAAAUAAAAFAAAAIAEAAAYAAAAB" +
68     "AAAASAEAAAIgAAAXAAAAaAEAAAEQAAACAAAAyAIAAAMgAAACAAAA2AIAAAEgAAACAAAA7AIAAAAg" +
69     "AAABAAAAPAMAAAQgAAACAAAATAMAAAMQAAABAAAAXAMAAAYgAAABAAAAaAMAAAAQAAABAAAAeAMA" +
70     "AA==");
71 
run()72   public static void run() {
73     doTest(new Transform());
74   }
75 
76   static class DoRedefinitionClass implements Runnable {
77     @Override
run()78     public void run() {
79       System.out.println("transforming calling function");
80       Redefinition.doCommonClassRedefinition(Transform.class, CLASS_BYTES, DEX_BYTES);
81       throw new Error("Throwing exception into an obsolete method!");
82     }
83   }
84 
doTest(Transform t)85   public static void doTest(Transform t) {
86     t.sayHi(() -> { System.out.println("Not doing anything here"); });
87     try {
88       t.sayHi(new DoRedefinitionClass());
89     } catch (Throwable e) {
90       System.out.println("Received error : " + e);
91       e.printStackTrace(System.out);
92     }
93     t.sayHi(() -> { System.out.println("Not doing anything here"); });
94   }
95 }
96