| /* |
| * Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 8034275 |
| * @bug 8098557 |
| * @summary [JDK 8u40] Test interface init: only for interfaces declaring default methods, when subclass inits |
| * @run main TestInterfaceInit |
| */ |
| import java.util.List; |
| import java.util.Arrays; |
| import java.util.ArrayList; |
| |
| public class TestInterfaceInit { |
| |
| static List<Class<?>> cInitOrder = new ArrayList<>(); |
| |
| // Declares a default method and initializes |
| interface I { |
| boolean v = TestInterfaceInit.out(I.class); |
| default void ix() {} |
| } |
| |
| // Declares a default method and initializes |
| interface J extends I { |
| boolean v = TestInterfaceInit.out(J.class); |
| default void jx() {} |
| } |
| // No default method, has an abstract method, does not initialize |
| interface JN extends J { |
| boolean v = TestInterfaceInit.out(JN.class); |
| public abstract void jnx(); |
| } |
| |
| // Declares a default method and initializes |
| interface K extends I { |
| boolean v = TestInterfaceInit.out(K.class); |
| default void kx() {} |
| } |
| |
| // No default method, has a static method, does not initialize |
| interface KN extends K { |
| boolean v = TestInterfaceInit.out(KN.class); |
| static void knx() {} |
| } |
| |
| interface L extends JN, KN { |
| boolean v = TestInterfaceInit.out(L.class); |
| default void lx() {} |
| } |
| |
| static class ChildClass implements JN, KN { |
| boolean v = TestInterfaceInit.out(ChildClass.class); |
| public void jnx() {} |
| } |
| |
| public static void main(String[] args) { |
| // Trigger initialization |
| boolean v = L.v; |
| |
| List<Class<?>> expectedCInitOrder = Arrays.asList(L.class); |
| if (!cInitOrder.equals(expectedCInitOrder)) { |
| throw new RuntimeException(String.format("Class initialization array %s not equal to expected array %s", cInitOrder, expectedCInitOrder)); |
| } |
| |
| ChildClass myC = new ChildClass(); |
| boolean w = myC.v; |
| |
| expectedCInitOrder = Arrays.asList(L.class,I.class,J.class,K.class,ChildClass.class); |
| if (!cInitOrder.equals(expectedCInitOrder)) { |
| throw new RuntimeException(String.format("Class initialization array %s not equal to expected array %s", cInitOrder, expectedCInitOrder)); |
| } |
| |
| } |
| |
| static boolean out(Class c) { |
| System.out.println("#: initializing " + c.getName()); |
| cInitOrder.add(c); |
| return true; |
| } |
| |
| } |