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/*
* Copyright (c) 2013, 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 8004240
* @summary Verify that getAdapterPreference returns an unmodifiable list.
* @modules java.base/sun.util.locale.provider
* @compile -XDignore.symbol.file GetAdapterPreference.java
* @run junit GetAdapterPreference
*/
import java.util.List;
import sun.util.locale.provider.LocaleProviderAdapter;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertThrows;
public class GetAdapterPreference {
/**
* Test that the list returned from getAdapterPreference()
* cannot be modified.
*/
@Test
public void immutableTest() {
List<LocaleProviderAdapter.Type> types = LocaleProviderAdapter.getAdapterPreference();
assertThrows(UnsupportedOperationException.class, () -> types.set(0, null),
"Trying to modify list returned from LocaleProviderAdapter.getAdapterPreference() did not throw UOE");
}
}
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