test/java/nio/charset/Charset/AvailableCharsetNames.java

/*
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 * 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.
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 */

/* @test
 * @bug 4422044
 * @summary Ensure that keys in available-charset map
 *          are identical to canonical names
 */

import java.io.*;
import java.nio.*;
import java.nio.charset.*;
import java.util.*;


public class AvailableCharsetNames {

    public static void main(String[] args) throws Exception {
        Iterator charsetIterator = Charset.availableCharsets().keySet().iterator();
        while (charsetIterator.hasNext()) {
            String charsetName = (String) charsetIterator.next();
            Charset charset = Charset.forName(charsetName);
            if (!charset.name().equals(charsetName)) {
                throw new Exception("Error: Charset name mismatch - expected "
                                   + charsetName + ", got " + charset.name());
            }
        }

    }

}