/* * Copyright (C) 2013 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. */ public class Main { public static void main(String args[]) throws Exception { System.err.println(new C().m()); } } // An arbitrary interface. interface I { public String m(); } // This is I-like, but doesn't actually claim to implement I. abstract class Abstract { protected abstract String m(); } // This claims to implement I, but the inherited m isn't sufficiently visible. abstract class AbstractI extends Abstract implements I { } // This has a concrete m that's sufficiently visible, so all should be good. class C extends AbstractI { public String m() { return "passed"; }; }