001    /**
002     *
003     *  Licensed to the Apache Software Foundation (ASF) under one or more
004     *  contributor license agreements.  See the NOTICE file distributed with
005     *  this work for additional information regarding copyright ownership.
006     *  The ASF licenses this file to You under the Apache License, Version 2.0
007     *  (the "License"); you may not use this file except in compliance with
008     *  the License.  You may obtain a copy of the License at
009     *
010     *     http://www.apache.org/licenses/LICENSE-2.0
011     *
012     *  Unless required by applicable law or agreed to in writing, software
013     *  distributed under the License is distributed on an "AS IS" BASIS,
014     *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015     *  See the License for the specific language governing permissions and
016     *  limitations under the License.
017     */
018    
019    package org.apache.geronimo.util.asn1;
020    
021    import java.io.IOException;
022    
023    /**
024     * A BER NULL object.
025     */
026    public class BERNull
027        extends DERNull
028    {
029        public BERNull()
030        {
031        }
032    
033        void encode(
034            DEROutputStream  out)
035            throws IOException
036        {
037            if (out instanceof ASN1OutputStream || out instanceof BEROutputStream)
038            {
039                out.write(NULL);
040            }
041            else
042            {
043                super.encode(out);
044            }
045        }
046    }