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JDK 1.6
  java.lang. RuntimeException View Javadoc
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/*
 * @(#)RuntimeException.java	1.14 05/11/17
 *
 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */

package java.lang;

/**
 * <code>RuntimeException</code> is the superclass of those 
 * exceptions that can be thrown during the normal operation of the 
 * Java Virtual Machine. 
 * <p>
 * A method is not required to declare in its <code>throws</code> 
 * clause any subclasses of <code>RuntimeException</code> that might 
 * be thrown during the execution of the method but not caught. 
 *
 *
 * @author  Frank Yellin
 * @version 1.14, 11/17/05
 * @since   JDK1.0
 */
public class RuntimeException extends Exception {
    static final long serialVersionUID = -7034897190745766939L;

    /** Constructs a new runtime exception with <code>null</code> as its
     * detail message.  The cause is not initialized, and may subsequently be
     * initialized by a call to {@link #initCause}.
     */
    public RuntimeException() {
	super();
    }

    /** Constructs a new runtime exception 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 RuntimeException(String message) {
	super(message);
    }

    /**
     * Constructs a new runtime exception with the specified detail message and
     * cause.  <p>Note that the detail message associated with
     * <code>cause</code> is <i>not</i> automatically incorporated in
     * this runtime exception'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 <tt>null</tt> value is
     *         permitted, and indicates that the cause is nonexistent or
     *         unknown.)
     * @since  1.4
     */
    public RuntimeException(String message, Throwable cause) {
        super(message, cause);
    }

    /** Constructs a new runtime exception with the specified cause and a
     * detail message of <tt>(cause==null ? null : cause.toString())</tt>
     * (which typically contains the class and detail message of
     * <tt>cause</tt>).  This constructor is useful for runtime exceptions
     * 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 <tt>null</tt> value is
     *         permitted, and indicates that the cause is nonexistent or
     *         unknown.)
     * @since  1.4
     */
    public RuntimeException(Throwable cause) {
        super(cause);
    }
}

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