duke@1: /*
duke@1:  * Copyright 1997 Sun Microsystems, Inc.  All Rights Reserved.
duke@1:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@1:  *
duke@1:  * This code is free software; you can redistribute it and/or modify it
duke@1:  * under the terms of the GNU General Public License version 2 only, as
duke@1:  * published by the Free Software Foundation.
duke@1:  *
duke@1:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@1:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@1:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@1:  * version 2 for more details (a copy is included in the LICENSE file that
duke@1:  * accompanied this code).
duke@1:  *
duke@1:  * You should have received a copy of the GNU General Public License version
duke@1:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@1:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@1:  *
duke@1:  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@1:  * CA 95054 USA or visit www.sun.com if you need additional information or
duke@1:  * have any questions.
duke@1:  */
duke@1: 
duke@1: /*
duke@1:  * @test
duke@1:  * @bug 4047816
duke@1:  * @summary certain inheritance patterns involving methods defined in
duke@1:  *          Object used to cause spurious error messages.
duke@1:  * @author turnidge
duke@1:  *
duke@1:  * @compile CloneableProblem.java
duke@1:  */
duke@1: 
duke@1: interface A extends Cloneable
duke@1: {
duke@1:   public Object clone() throws CloneNotSupportedException;
duke@1: }
duke@1: interface B extends A
duke@1: { }
duke@1: interface C extends A
duke@1: { }
duke@1: interface D extends B, C
duke@1: { }
duke@1: 
duke@1: public class CloneableProblem implements D
duke@1: {
duke@1:   private int i;
duke@1:   public CloneableProblem(int i)
duke@1:   {
duke@1:     this.i = i;
duke@1:   }
duke@1:   public Object clone()
duke@1:   {
duke@1:     CloneableProblem theCloneableProblem = null;
duke@1:     try
duke@1:       {
duke@1:         theCloneableProblem = (CloneableProblem) super.clone();
duke@1:         theCloneableProblem.i = i;
duke@1:       }
duke@1:     catch (CloneNotSupportedException cnse)
duke@1:       { }
duke@1:     return theCloneableProblem;
duke@1:   }
duke@1:   public static void main(String argv[])
duke@1:   {
duke@1:     try
duke@1:       {
duke@1:         A a0 = new CloneableProblem(0);
duke@1:         A a1 = (A) a0.clone();
duke@1:         B b0 = new CloneableProblem(0);
duke@1:         B b1 = (B) b0.clone();
duke@1:         C c0 = new CloneableProblem(0);
duke@1:         C c1 = (C) c0.clone();
duke@1:         D d0 = new CloneableProblem(0);
duke@1:         D d1 = (D) d0.clone();
duke@1:       }
duke@1:     catch (CloneNotSupportedException cnse)
duke@1:       { }
duke@1:       }
duke@1: }