opendap/src/main/java/opendap/dap/DSequence.java
protected void writeMarker(DataOutputStream sink, byte marker) throws IOException {
        //for(int i=0; i<4; i++)
        sink.writeByte(marker);
        sink.writeByte((byte) 0);
        sink.writeByte((byte) 0);
        sink.writeByte((byte) 0);
    }
protected void writeMarker(DataOutputStream sink, byte marker) throws IOException {
        //for(int i=0; i<4; i++)
        sink.writeByte(marker);
        sink.writeByte((byte) 0);
        sink.writeByte((byte) 0);
        sink.writeByte((byte) 0);
    }
Writes a marker byte to the output stream.