test/tools/javac/FinalIntConcatenation.java

/*
 * Copyright 1998 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 */

/*
 * @test
 * @bug 4106244
 * @summary Final ints were getting incorrectly evaluated at compile time
 *          to the value null when they were used as a part of a constant
 *          String concatenation.
 * @author turnidge
 *
 * @compile FinalIntConcatenation.java
 * @run main FinalIntConcatenation
 */

public class FinalIntConcatenation {
    public static void main(String[] args) throws Exception {
        final int i = 7;
        String s = "" + i;
        if (s.indexOf("null",0) != -1) {
            throw new Exception(
                  "incorrect compile-time evaluation of final int");
        }
    }
}