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/*
 * Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package jakarta.ejb;

/**
 * The EJBException is thrown to report that the invoked
 * business method or callback method could not be completed because
 * of an unexpected error (e.g. the instance failed to open a database
 * connection).
 *
 * @since EJB 1.1
 */
public class EJBException extends java.lang.RuntimeException {
    
    private static final long serialVersionUID = 796770993296843510L;

    /**
     * Constructs an EJBException with no detail message.
     */  
    public EJBException() {
    }

    /**
     * Constructs an EJBException with the specified
     * detailed message.
     */  
    public EJBException(String message) {
        super(message);
    }

    /**
     * Constructs an EJBException that embeds the originally thrown exception.
     */  
    public EJBException(Exception  ex) {
        super(ex);
    }

    /**
     * Constructs an EJBException that embeds the originally thrown exception
     * with the specified detail message. 
     */  
    public EJBException(String message, Exception  ex) {
        super(message, ex);
    }


    /**
     * Obtain the exception that caused the EJBException to be thrown.
     * It is recommended that the inherited Throwable.getCause() method
     * be used to retrieve the cause instead of this method. 
     */
    public Exception getCausedByException() {
	    return (Exception) getCause();
    }

}