1 /*
2  * Copyright (C) 2014 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 import java.lang.reflect.InvocationTargetException;
18 import java.lang.reflect.Method;
19 
20 public class Main {
main(String[] args)21   public static void main(String[] args) throws Exception {
22     System.loadLibrary(args[0]);
23     boolean hasImage = hasImage();
24     String instructionSet = VMRuntime.getCurrentInstructionSet();
25     boolean isBootClassPathOnDisk = VMRuntime.isBootClassPathOnDisk(instructionSet);
26     System.out.println(
27         "Has image is " + hasImage + ", is image dex2oat enabled is "
28         + isImageDex2OatEnabled() + ", is BOOTCLASSPATH on disk is "
29         + isBootClassPathOnDisk + ".");
30 
31     if (hasImage && !isImageDex2OatEnabled()) {
32       throw new Error("Image with dex2oat disabled runs with an oat file");
33     } else if (!hasImage && isImageDex2OatEnabled()) {
34       throw new Error("Image with dex2oat enabled runs without an oat file");
35     }
36     if (hasImage && !isBootClassPathOnDisk) {
37       throw new Error("Image with dex2oat disabled runs with an image file");
38     } else if (!hasImage && isBootClassPathOnDisk) {
39       throw new Error("Image with dex2oat enabled runs without an image file");
40     }
41 
42     testB18485243();
43   }
44 
hasImage()45   private native static boolean hasImage();
46 
isImageDex2OatEnabled()47   private native static boolean isImageDex2OatEnabled();
48 
49   private static class VMRuntime {
50     private static final Method getCurrentInstructionSetMethod;
51     private static final Method isBootClassPathOnDiskMethod;
52     static {
53         try {
54             Class c = Class.forName("dalvik.system.VMRuntime");
55             getCurrentInstructionSetMethod = c.getDeclaredMethod("getCurrentInstructionSet");
56             isBootClassPathOnDiskMethod = c.getDeclaredMethod("isBootClassPathOnDisk",
57                                                               String.class);
58         } catch (Exception e) {
59             throw new RuntimeException(e);
60         }
61     }
62 
getCurrentInstructionSet()63     public static String getCurrentInstructionSet() throws Exception {
64       return (String) getCurrentInstructionSetMethod.invoke(null);
65     }
isBootClassPathOnDisk(String instructionSet)66     public static boolean isBootClassPathOnDisk(String instructionSet) throws Exception {
67       return (boolean) isBootClassPathOnDiskMethod.invoke(null, instructionSet);
68     }
69   }
70 
testB18485243()71   private static void testB18485243() throws Exception {
72     Class<?> k = Class.forName("B18485243");
73     Object o = k.newInstance();
74     Method m = k.getDeclaredMethod("run");
75     try {
76       m.invoke(o);
77     } catch (InvocationTargetException e) {
78       Throwable actual = e.getTargetException();
79       if (!(actual instanceof IncompatibleClassChangeError)) {
80         throw new AssertionError("Expected IncompatibleClassChangeError", actual);
81       }
82     }
83     System.out.println("testB18485243 PASS");
84   }
85 }
86