duke@1: /*
duke@1:  * Copyright 1999 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 4244408
duke@1:  * @summary toString() should be called implicitly when += is used.
duke@1:  *
duke@1:  * @run main ImplicitToString
duke@1:  */
duke@1: 
duke@1: 
duke@1: // The failure for this test is a ClassCastException when the code is run.
duke@1: 
duke@1: import java.util.ArrayList;
duke@1: 
duke@1: public class ImplicitToString {
duke@1:     public static void main(String[] args) {
duke@1:         String s = "";
duke@1:         ArrayList al = new ArrayList();
duke@1:         al.add(new Object());
duke@1: 
duke@1:         // In the following line, toString() should be implicitly called.
duke@1:         s += al.get(0);
duke@1:     }
duke@1: }