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      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 public class Main {
     18     public static String TEST_NAME = "158-app-image-class-table";
     19 
     20     public static void main(String[] args) {
     21         try {
     22             Class<?> class_loader_class = Class.forName("dalvik.system.PathClassLoader");
     23             System.loadLibrary(args[0]);
     24         } catch (ClassNotFoundException e) {
     25             usingRI = true;
     26             // Add expected JNI_OnLoad log line to match expected.txt.
     27             System.out.println("JNI_OnLoad called");
     28         }
     29         try {
     30             // Resolve but do not initialize TestImplementation. During the resolution,
     31             // we see the Cloneable in the dex cache, so we do not try to look it up
     32             // or resolve it.
     33             Class<?> timpl =
     34                 Class.forName("TestImplementation", false, Main.class.getClassLoader());
     35             // Clear the dex cache resolved types to force a proper lookup the next time
     36             // we need to find TestInterface.
     37             clearResolvedTypes(timpl);
     38             // Force intialization of TestImplementation. This expects the interface type
     39             // to be resolved and found through simple lookup.
     40             timpl.newInstance();
     41         } catch (Throwable t) {
     42             t.printStackTrace(System.out);
     43         }
     44     }
     45 
     46     public static void clearResolvedTypes(Class<?> c) {
     47         if (!usingRI) {
     48             nativeClearResolvedTypes(c);
     49         }
     50     }
     51 
     52     private static boolean usingRI = false;
     53 
     54     public static native void nativeClearResolvedTypes(Class<?> c);
     55 }
     56