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Error.java
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/*
* Copyright (c) 1995, 2011, Oracle and/or its affiliates. All rights reserved.
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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package java.lang;
/**
* An {@code Error} is a subclass of {@code Throwable}
* that indicates serious problems that a reasonable application
* should not try to catch. Most such errors are abnormal conditions.
* The {@code ThreadDeath} error, though a "normal" condition,
* is also a subclass of {@code Error} because most applications
* should not try to catch it.
* <p>
* A method is not required to declare in its {@code throws}
* clause any subclasses of {@code Error} that might be thrown
* during the execution of the method but not caught, since these
* errors are abnormal conditions that should never occur.
*
* That is, {@code Error} and its subclasses are regarded as unchecked
* exceptions for the purposes of compile-time checking of exceptions.
*
* @author Frank Yellin
* @see java.lang.ThreadDeath
* @jls 11.2 Compile-Time Checking of Exceptions
* @since JDK1.0
*/
public class Error extends Throwable {
static final long serialVersionUID = 4980196508277280342L;
/**
* Constructs a new error with {@code null} as its detail message.
* The cause is not initialized, and may subsequently be initialized by a
* call to {@link #initCause}.
*/
public Error() {
super();
}
/**
* Constructs a new error with the specified detail message. The
* cause is not initialized, and may subsequently be initialized by
* a call to {@link #initCause}.
*
* @param message the detail message. The detail message is saved for
* later retrieval by the {@link #getMessage()} method.
*/
public Error(String message) {
super(message);
}
/**
* Constructs a new error with the specified detail message and
* cause. <p>Note that the detail message associated with
* {@code cause} is <i>not</i> automatically incorporated in
* this error's detail message.
*
* @param message the detail message (which is saved for later retrieval
* by the {@link #getMessage()} method).
* @param cause the cause (which is saved for later retrieval by the
* {@link #getCause()} method). (A {@code null} value is
* permitted, and indicates that the cause is nonexistent or
* unknown.)
* @since 1.4
*/
public Error(String message, Throwable cause) {
super(message, cause);
}
/**
* Constructs a new error with the specified cause and a detail
* message of {@code (cause==null ? null : cause.toString())} (which
* typically contains the class and detail message of {@code cause}).
* This constructor is useful for errors that are little more than
* wrappers for other throwables.
*
* @param cause the cause (which is saved for later retrieval by the
* {@link #getCause()} method). (A {@code null} value is
* permitted, and indicates that the cause is nonexistent or
* unknown.)
* @since 1.4
*/
public Error(Throwable cause) {
super(cause);
}
/**
* Constructs a new error with the specified detail message,
* cause, suppression enabled or disabled, and writable stack
* trace enabled or disabled.
*
* @param message the detail message.
* @param cause the cause. (A {@code null} value is permitted,
* and indicates that the cause is nonexistent or unknown.)
* @param enableSuppression whether or not suppression is enabled
* or disabled
* @param writableStackTrace whether or not the stack trace should
* be writable
*
* @since 1.7
*/
protected Error(String message, Throwable cause,
boolean enableSuppression,
boolean writableStackTrace) {
super(message, cause, enableSuppression, writableStackTrace);
}
}