Copyright (c) 2004, 2015 IBM Corporation and others.
This program and the accompanying materials
are made available under the terms of the Eclipse Public License 2.0
which accompanies this distribution, and is available at
https://www.eclipse.org/legal/epl-2.0/
SPDX-License-Identifier: EPL-2.0
Contributors:
    IBM Corporation - initial API and implementation
/*******************************************************************************
 * Copyright (c) 2004, 2015 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.core.commands.common;

Signals that an exception occured within the command architecture.

This class is not intended to be extended by clients.

Since:
3.1
@noextend
This class is not intended to be subclassed by clients./**
 * Signals that an exception occured within the command architecture.
 * <p>
 * This class is not intended to be extended by clients.
 * </p>
 *
 * @since 3.1
 * @noextend This class is not intended to be subclassed by clients.
 */
public abstract class CommandException extends Exception {

	
Generated serial version UID for this class.
Since:
3.4/**
	 * Generated serial version UID for this class.
	 *
	 * @since 3.4
	 */
	private static final long serialVersionUID = 5389763628699257234L;

	
This member variable is required here to allow us to compile against JCL
foundation libraries.  The value may be null.
/**
	 * This member variable is required here to allow us to compile against JCL
	 * foundation libraries.  The value may be <code>null</code>.
	 */
	private Throwable cause;

	
Creates a new instance of this class with the specified detail message.
Params:
message – 
           the detail message; may be null./**
	 * Creates a new instance of this class with the specified detail message.
	 *
	 * @param message
	 *            the detail message; may be <code>null</code>.
	 */
	public CommandException(final String message) {
		super(message);
	}

	
Creates a new instance of this class with the specified detail message
and cause.
Params:
message – 
           the detail message; may be null.
cause – 
           the cause; may be null./**
	 * Creates a new instance of this class with the specified detail message
	 * and cause.
	 *
	 * @param message
	 *            the detail message; may be <code>null</code>.
	 * @param cause
	 *            the cause; may be <code>null</code>.
	 */
	public CommandException(final String message, final Throwable cause) {
		super(message);
		// don't pass the cause to super, to allow compilation against JCL Foundation
		this.cause = cause;
	}

	
Returns the cause of this throwable or null if the
cause is nonexistent or unknown.
Returns:
the cause or null/**
	 * Returns the cause of this throwable or <code>null</code> if the
	 * cause is nonexistent or unknown.
	 *
	 * @return the cause or <code>null</code>
	 */
	@Override
	public Throwable getCause() {
		return cause;
	}

}