67 lines
2.8 KiB
Java
67 lines
2.8 KiB
Java
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/*
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* Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package java.lang;
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import jdk.internal.javac.PreviewFeature;
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/**
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* Thrown to indicate an unexpected failure in pattern matching.
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*
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* {@code MatchException} may be thrown when an exhaustive pattern matching language construct
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* (such as a switch expression) encounters a value that does not match any of the provided
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* patterns at runtime. This can currently arise for separate compilation anomalies,
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* where a sealed interface has a different set of permitted subtypes at runtime than
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* it had at compilation time, an enum has a different set of constants at runtime than
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* it had at compilation time, or the type hierarchy has changed in incompatible ways between
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* compile time and run time.
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*
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* @jls 14.11.3 Execution of a switch Statement
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* @jls 14.30.2 Pattern Matching
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* @jls 15.28.2 Run-Time Evaluation of switch Expressions
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*
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* @since 19
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*/
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@PreviewFeature(feature=PreviewFeature.Feature.SWITCH_PATTERN_MATCHING)
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public final class MatchException extends RuntimeException {
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@java.io.Serial
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private static final long serialVersionUID = 0L;
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/**
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* Constructs an {@code MatchException} with the specified detail message and
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* cause.
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*
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* @param message the detail message (which is saved for later retrieval
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* by the {@link #getMessage()} method).
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* @param cause the cause (which is saved for later retrieval by the
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* {@link #getCause()} method). (A {@code null} value is
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* permitted, and indicates that the cause is nonexistent or
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* unknown.)
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*/
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public MatchException(String message, Throwable cause) {
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super(message, cause);
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}
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}
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