package won.cryptography.exception;

/**
 * User: fsalcher Date: 24.07.2014
 */
public class KeyNotSupportedException extends Exception {
    public KeyNotSupportedException() {
    }

    public KeyNotSupportedException(String msg) {
        super(msg);
    }
}

package won.cryptography.exception;

/**
 * User: fsalcher Date: 24.07.2014
 */
public class KeyNotSupportedException extends Exception {
    public KeyNotSupportedException() {
    }

    public KeyNotSupportedException(String msg) {
        super(msg);
    }

    public KeyNotSupportedException(String message, Throwable cause) {
        super(message, cause);
    }
}

Add constructor