/*
 * $Header$
 *
 * Copyright (c) OSGi Alliance (2006). All Rights Reserved.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package info.dmtree;

/**
 * Unchecked illegal state exception. This class is used in DMT because 
 * java.lang.IllegalStateException does not exists in CLDC.
 * 
 * @version $Revision$
 */
public class DmtIllegalStateException extends RuntimeException {
	private static final long	serialVersionUID	= 2015244852018469700L;

	/**
	 * Create an instance of the exception with no message.
	 */
	public DmtIllegalStateException() {
		super();
	}

	/**
	 * Create an instance of the exception with the specific message.
	 * 
	 * @param message The reason for the exception.
	 */
	public DmtIllegalStateException(String message) {
		super(message);
	}
}

/*
 * $Header$
 *
 * Copyright (c) OSGi Alliance (2006). All Rights Reserved.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package info.dmtree;

/**
 * Unchecked illegal state exception. This class is used in DMT because 
 * java.lang.IllegalStateException does not exist in CLDC.
 * 
 * @version $Revision$
 */
public class DmtIllegalStateException extends RuntimeException {
	private static final long	serialVersionUID	= 2015244852018469700L;

	/**
	 * Nested exception.
	 */
	private final Throwable	cause;

	/**
	 * Create an instance of the exception with no message.
	 */
	public DmtIllegalStateException() {
		super();
		cause = null;
	}

	/**
	 * Create an instance of the exception with the specific message.
	 * 
	 * @param message The reason for the exception.
	 */
	public DmtIllegalStateException(String message) {
		super(message);
		cause = null;
	}

	/**
	 * Create an instance of the exception with no message.
	 */
	public DmtIllegalStateException(Throwable t) {
		super();
		cause = t;
	}

	/**
	 * Create an instance of the exception with the specific message.
	 * 
	 * @param message The reason for the exception.
	 */
	public DmtIllegalStateException(String message, Throwable t) {
		super(message);
		cause = t;
	}

	/**
	 * Returns the cause of this exception or <code>null</code> if no cause
	 * was specified when this exception was created.
	 * 
	 * @return The cause of this exception or <code>null</code> if no cause
	 *         was specified.
	 */
	public Throwable getCause() {
		return cause;
	}
}

add exception chaining