/* * Copyright (C) 2017 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. */ // Define enough methods to enter the conflict trampoline. interface Itf { default int $noinline$def1() { return 42; } default int $noinline$def2() { return 42; } default int $noinline$def3() { return 42; } default int $noinline$def4() { return 42; } default int $noinline$def5() { return 42; } default int $noinline$def6() { return 42; } default int $noinline$def7() { return 42; } default int $noinline$def8() { return 42; } default int $noinline$def9() { return 42; } default int $noinline$def10() { return 42; } default int $noinline$def11() { return 42; } default int $noinline$def12() { return 42; } default int $noinline$def13() { return 42; } default int $noinline$def14() { return 42; } default int $noinline$def15() { return 42; } default int $noinline$def16() { return 42; } default int $noinline$def17() { return 42; } default int $noinline$def18() { return 42; } default int $noinline$def19() { return 42; } default int $noinline$def20() { return 42; } default int $noinline$def21() { return 42; } default int $noinline$def22() { return 42; } // Known name conflict in OC-dev. default int $noinline$defAa() { return 42; } default int $noinline$defbb() { return 42; } } // Define an abstract class so that the super calls in Main.instanceMethod // end up finding the miranda method (which was then wrongly stashed into // the dex cache). class AbstractItf implements Itf { } public class Main extends AbstractItf { static Itf itf = new Main(); public static void main(String[] args) throws Exception { new Main().instanceMethod(); } public void instanceMethod() { // Do super calls to invoke artQuickResolutionTrampoline, which used to // put the copied method AbstractIf. into the slot for the MethodId // referencing the Itf method. super.$noinline$def1(); super.$noinline$def2(); super.$noinline$def3(); super.$noinline$def4(); super.$noinline$def5(); super.$noinline$def6(); super.$noinline$def7(); super.$noinline$def8(); super.$noinline$def9(); super.$noinline$def10(); super.$noinline$def11(); super.$noinline$def12(); super.$noinline$def13(); super.$noinline$def14(); super.$noinline$def15(); super.$noinline$def16(); super.$noinline$def17(); super.$noinline$def18(); super.$noinline$def19(); super.$noinline$def20(); super.$noinline$def21(); super.$noinline$def22(); super.$noinline$defAa(); super.$noinline$defbb(); // Now call the same methods but through an invoke-interface, which used to crash // if the wrong method was in the dex cache. itf.$noinline$def1(); itf.$noinline$def2(); itf.$noinline$def3(); itf.$noinline$def4(); itf.$noinline$def5(); itf.$noinline$def6(); itf.$noinline$def7(); itf.$noinline$def8(); itf.$noinline$def9(); itf.$noinline$def10(); itf.$noinline$def11(); itf.$noinline$def12(); itf.$noinline$def13(); itf.$noinline$def14(); itf.$noinline$def15(); itf.$noinline$def16(); itf.$noinline$def17(); itf.$noinline$def18(); itf.$noinline$def19(); itf.$noinline$def20(); itf.$noinline$def21(); itf.$noinline$def22(); itf.$noinline$defAa(); itf.$noinline$defbb(); } }