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/*
 * Written by Doug Lea with assistance from members of JCP JSR-166
 * Expert Group and released to the public domain, as explained at
 * http://creativecommons.org/licenses/publicdomain
 */
 
package java.util.concurrent;
 
/**
 * Exception thrown when attempting to retrieve the result of a task
 * that aborted by throwing an exception. This exception can be
 * inspected using the {@link #getCause()} method.
 *
 * @see Future
 * @since 1.5
 * @author Doug Lea
 */
public class ExecutionException extends Exception {
    private static final long serialVersionUID = 7830266012832686185L;
 
    /**
     * Constructs an <tt>ExecutionException</tt> with no detail message.
     * The cause is not initialized, and may subsequently be
     * initialized by a call to {@link #initCause(Throwable) initCause}.
     */
    protected ExecutionException() { }
 
    /**
     * Constructs an <tt>ExecutionException</tt> with the specified detail
     * message. The cause is not initialized, and may subsequently be
     * initialized by a call to {@link #initCause(Throwable) initCause}.
     *
     * @param message the detail message
     */
    protected ExecutionException(String message) {
        super(message);
    }
 
    /**
     * Constructs an <tt>ExecutionException</tt> with the specified detail
     * message and cause.
     *
     * @param  message the detail message
     * @param  cause the cause (which is saved for later retrieval by the
     *         {@link #getCause()} method)
     */
    public ExecutionException(String message, Throwable cause) {
        super(message, cause);
    }
 
    /**
     * Constructs an <tt>ExecutionException</tt> with the specified cause.
     * The detail message is set to:
     * <pre>
     *  (cause == null ? null : cause.toString())</pre>
     * (which typically contains the class and detail message of
     * <tt>cause</tt>).
     *
     * @param  cause the cause (which is saved for later retrieval by the
     *         {@link #getCause()} method)
     */
    public ExecutionException(Throwable cause) {
        super(cause);
    }
}