| /* |
| * Copyright (c) 2016, 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 8163969 |
| * @summary Interface initialization was crashing on this because the wrong class was getting |
| * initialization error. |
| * @run main CyclicInterfaceInit |
| */ |
| /** |
| * This snippet crashes with |
| * - Java(TM) SE Runtime Environment (8.0_101-b13) (build 1.8.0_101-b13) |
| */ |
| public class CyclicInterfaceInit { |
| |
| interface Base { |
| static final Object CONST = new Target(){}.someMethod(); |
| |
| default void important() { |
| // Super interfaces with default methods get initialized (JLS 12.4.1) |
| } |
| } |
| |
| static boolean out(String c) { |
| System.out.println("initializing " + c); |
| return true; |
| } |
| |
| interface Target extends Base { |
| boolean v = CyclicInterfaceInit.out("Target"); |
| default Object someMethod() { |
| throw new RuntimeException(); |
| } |
| // Target can be fully initialized before initializating Base because Target doesn't |
| // initiate the initialization of Base. |
| } |
| |
| static class InnerBad implements Target {} |
| |
| public static void main(String[] args) { |
| try { |
| new Target() {}; // Creates inner class that causes initialization of super interfaces |
| } catch (ExceptionInInitializerError e) { |
| System.out.println("ExceptionInInitializerError thrown as expected"); |
| } |
| // Try again, InnerBad instantiation should throw NoClassdefFoundError |
| // because Base is marked erroneous due to previous exception during initialization |
| try { |
| InnerBad ig = new InnerBad(); |
| throw new RuntimeException("FAILED- initialization of InnerBad should throw NCDFE"); |
| } catch (NoClassDefFoundError e) { |
| System.out.println("NoClassDefFoundError thrown as expected"); |
| } |
| // Target is already initialized. |
| System.out.println("Target.v is " + Target.v); |
| // shouldn't throw any exceptions. |
| } |
| } |