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/*
* Copyright (c) 2023, 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 8319817
* @summary Check that aliases cannot be mutated
* @run junit AliasesCopy
*/
import java.nio.charset.Charset;
import java.nio.charset.CharsetDecoder;
import java.nio.charset.CharsetEncoder;
import java.util.Set;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertIterableEquals;
public class AliasesCopy {
private static final Set<String> ALIASES_SET = Set.of("foo-alias");
private static final String[] ALIASES_ARRAY = ALIASES_SET.toArray(String[]::new);
@Test
public void aliasesCopy() {
final FooCharset cs = new FooCharset(ALIASES_ARRAY);
ALIASES_ARRAY[0] = "bar-alias";
assertIterableEquals(ALIASES_SET, cs.aliases());
}
private static final class FooCharset extends Charset {
private FooCharset(String[] aliases) {
super("foo", aliases);
}
@Override
public CharsetEncoder newEncoder() {
throw new RuntimeException("not implemented");
}
@Override
public CharsetDecoder newDecoder() {
throw new RuntimeException("not implemented");
}
@Override
public boolean contains(Charset cs) {
throw new RuntimeException("not implemented");
}
}
}
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