1 /* 2 * Copyright (C) 2015 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 class Main implements Iface, Iface2 { main(String[] args)17 public static void main(String[] args) { 18 System.loadLibrary(args[0]); 19 System.out.println("Create Main instance"); 20 Main m = new Main(); 21 System.out.println("Calling functions on concrete Main"); 22 callMain(m); 23 } 24 callMain(Main m)25 public static void callMain(Main m) { 26 System.out.println("Calling non-conflicting function on Main"); 27 m.test(); 28 long main_id = GetMethodId(false, Main.class, "test", "()V"); 29 long iface_id = GetMethodId(false, Iface.class, "test", "()V"); 30 try { 31 long iface2_id = GetMethodId(false, Main.class, "test", "()V"); 32 System.out.println("Unexpected normal exit from GetMethodId"); 33 } catch (NoSuchMethodError e) { 34 System.out.println("Expected NoSuchMethodError thrown on Iface2"); 35 } 36 if (main_id != iface_id) { 37 throw new Error("Default methods have different method ids"); 38 } 39 CallNonvirtual(m, Main.class, main_id); 40 41 System.out.println("Calling conflicting function on Main"); 42 try { 43 m.test_throws(); 44 } catch (IncompatibleClassChangeError e) { 45 System.out.println("Expected ICCE on main"); 46 } 47 48 long main_throws_id = GetMethodId(false, Main.class, "test_throws", "()V"); 49 long iface_throws_id = GetMethodId(false, Iface.class, "test_throws", "()V"); 50 long iface2_throws_id = GetMethodId(false, Iface2.class, "test_throws", "()V"); 51 if (main_throws_id == iface_throws_id || main_throws_id == iface2_throws_id) { 52 System.out.println( 53 "Unexpected: method id of default conflicting matches one of the interface methods"); 54 } 55 56 try { 57 CallNonvirtual(m, Main.class, main_throws_id); 58 } catch (IncompatibleClassChangeError e) { 59 System.out.println("Expected ICCE on main"); 60 } 61 return; 62 } 63 GetMethodId(boolean is_static, Class k, String name, String sig)64 private static native long GetMethodId(boolean is_static, Class k, String name, String sig); CallNonvirtual(Object obj, Class k, long methodid)65 private static native long CallNonvirtual(Object obj, Class k, long methodid); 66 } 67