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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 8206986
 * @summary Verify that an switch expression over enum can be exhaustive without default.
 * @compile --enable-preview -source 12 ExhaustiveEnumSwitch.java
 * @compile ExhaustiveEnumSwitchExtra.java
 * @run main/othervm --enable-preview ExhaustiveEnumSwitch
 */

public class ExhaustiveEnumSwitch {
    public static void main(String... args) {
        new ExhaustiveEnumSwitch().run();
    }

    private void run() {
        ExhaustiveEnumSwitchEnum v = ExhaustiveEnumSwitchEnum.valueOf("F");

        try {
            print(v);
            throw new AssertionError("Expected exception did not occur.");
        } catch (IncompatibleClassChangeError err) {
            //ok
        }
    }

    private String print(ExhaustiveEnumSwitchEnum t) {
        return switch (t) {
            case A -> "A";
            case B -> "B";
        };
    }

}
enum ExhaustiveEnumSwitchEnum {
    A, B;
}