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 import java.lang.reflect.Method;
21 
22 public class Test947 {
23 
24   static class Transform {
sayHi()25     public void sayHi() {
26       System.out.println("hello");
27     }
28   }
29 
30 
31   /**
32    * base64 encoded class/dex file for
33    * static class Transform {
34    *   public void sayHi() {
35    *    System.out.println("Goodbye");
36    *   }
37    * }
38    */
39   private static final byte[] CLASS_BYTES = Base64.getDecoder().decode(
40     "yv66vgAAADQAIAoABgAOCQAPABAIABEKABIAEwcAFQcAGAEABjxpbml0PgEAAygpVgEABENvZGUB" +
41     "AA9MaW5lTnVtYmVyVGFibGUBAAVzYXlIaQEAClNvdXJjZUZpbGUBAAxUZXN0OTQ3LmphdmEMAAcA" +
42     "CAcAGQwAGgAbAQAHR29vZGJ5ZQcAHAwAHQAeBwAfAQAVYXJ0L1Rlc3Q5NDckVHJhbnNmb3JtAQAJ" +
43     "VHJhbnNmb3JtAQAMSW5uZXJDbGFzc2VzAQAQamF2YS9sYW5nL09iamVjdAEAEGphdmEvbGFuZy9T" +
44     "eXN0ZW0BAANvdXQBABVMamF2YS9pby9QcmludFN0cmVhbTsBABNqYXZhL2lvL1ByaW50U3RyZWFt" +
45     "AQAHcHJpbnRsbgEAFShMamF2YS9sYW5nL1N0cmluZzspVgEAC2FydC9UZXN0OTQ3ACAABQAGAAAA" +
46     "AAACAAAABwAIAAEACQAAAB0AAQABAAAABSq3AAGxAAAAAQAKAAAABgABAAAABQABAAsACAABAAkA" +
47     "AAAlAAIAAQAAAAmyAAISA7YABLEAAAABAAoAAAAKAAIAAAAHAAgACAACAAwAAAACAA0AFwAAAAoA" +
48     "AQAFABQAFgAI");
49   private static final byte[] DEX_BYTES = Base64.getDecoder().decode(
50     "ZGV4CjAzNQCEgoKcAAAAAAAAAAAAAAAAAAAAAAAAAAC4AwAAcAAAAHhWNBIAAAAAAAAAAPQCAAAU" +
51     "AAAAcAAAAAkAAADAAAAAAgAAAOQAAAABAAAA/AAAAAQAAAAEAQAAAQAAACQBAAB0AgAARAEAAEQB" +
52     "AABMAQAAVQEAAG4BAAB9AQAAoQEAAMEBAADYAQAA7AEAAAACAAAUAgAAIgIAAC0CAAAwAgAANAIA" +
53     "AEECAABHAgAATAIAAFUCAABcAgAAAgAAAAMAAAAEAAAABQAAAAYAAAAHAAAACAAAAAkAAAAMAAAA" +
54     "DAAAAAgAAAAAAAAADQAAAAgAAABkAgAABwAEABAAAAAAAAAAAAAAAAAAAAASAAAABAABABEAAAAF" +
55     "AAAAAAAAAAAAAAAAAAAABQAAAAAAAAAKAAAA5AIAALgCAAAAAAAABjxpbml0PgAHR29vZGJ5ZQAX" +
56     "TGFydC9UZXN0OTQ3JFRyYW5zZm9ybTsADUxhcnQvVGVzdDk0NzsAIkxkYWx2aWsvYW5ub3RhdGlv" +
57     "bi9FbmNsb3NpbmdDbGFzczsAHkxkYWx2aWsvYW5ub3RhdGlvbi9Jbm5lckNsYXNzOwAVTGphdmEv" +
58     "aW8vUHJpbnRTdHJlYW07ABJMamF2YS9sYW5nL09iamVjdDsAEkxqYXZhL2xhbmcvU3RyaW5nOwAS" +
59     "TGphdmEvbGFuZy9TeXN0ZW07AAxUZXN0OTQ3LmphdmEACVRyYW5zZm9ybQABVgACVkwAC2FjY2Vz" +
60     "c0ZsYWdzAARuYW1lAANvdXQAB3ByaW50bG4ABXNheUhpAAV2YWx1ZQAAAQAAAAYAAAAFAAcOAAcA" +
61     "Bw4BCA8AAAAAAQABAAEAAABsAgAABAAAAHAQAwAAAA4AAwABAAIAAABxAgAACQAAAGIAAAAbAQEA" +
62     "AABuIAIAEAAOAAAAAAABAQCAgAT8BAEBlAUAAAICARMYAQIDAg4ECA8XCwACAAAAyAIAAM4CAADY" +
63     "AgAAAAAAAAAAAAAAAAAAEAAAAAAAAAABAAAAAAAAAAEAAAAUAAAAcAAAAAIAAAAJAAAAwAAAAAMA" +
64     "AAACAAAA5AAAAAQAAAABAAAA/AAAAAUAAAAEAAAABAEAAAYAAAABAAAAJAEAAAIgAAAUAAAARAEA" +
65     "AAEQAAABAAAAZAIAAAMgAAACAAAAbAIAAAEgAAACAAAAfAIAAAAgAAABAAAAuAIAAAQgAAACAAAA" +
66     "yAIAAAMQAAABAAAA2AIAAAYgAAABAAAA5AIAAAAQAAABAAAA9AIAAA==");
67 
run()68   public static void run() {
69     doTest(new Transform());
70   }
71 
doTest(Transform t)72   public static void doTest(Transform t) {
73     try {
74       Method say_hi_method = t.getClass().getDeclaredMethod("sayHi");
75       say_hi_method.invoke(t);
76       Redefinition.doCommonClassRedefinition(Transform.class, CLASS_BYTES, DEX_BYTES);
77       say_hi_method.invoke(t);
78     } catch (Exception e) {
79       e.printStackTrace(System.out);
80     }
81   }
82 }
83