if ( decoder == null ) { decoder = new Asn1CodecDecoder( new MessageDecoder( env ) ); }  return decoder;
return new Asn1CodecDecoder( new MessageDecoder( env ) );
        public synchronized ProtocolDecoder getDecoder()        {        	if ( decoder == null )        	{        		decoder = new Asn1CodecDecoder( new MessageDecoder( env ) );        	}        	            return decoder;        }