/* * Copyright (C) 2021 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.io.File; import java.lang.reflect.InvocationHandler; import java.lang.reflect.Method; public class Main { public static void main(String[] args) throws Exception { System.loadLibrary(args[0]); init(); appendToBootClassLoader(DEX_EXTRA, /* isCorePlatform */ false); Class klass = Object.class.getClassLoader().loadClass("MyClass"); Method m = klass.getDeclaredMethod("futureHidden"); Integer result = (Integer) m.invoke(null); if (result.intValue() != 42) { throw new Error("Expected 42, got " + result.intValue()); } } private static final String DEX_EXTRA = new File(System.getenv("DEX_LOCATION"), "822-hiddenapi-future-ex.jar").getAbsolutePath(); private static native void init(); private static native void appendToBootClassLoader(String dexPath, boolean isCorePlatform); }