package com.lowagie.bc.asn1; import java.io.IOException; import java.io.OutputStream; public class ASN1OutputStream extends DEROutputStream { public ASN1OutputStream( OutputStream os) { super(os); } public void writeObject( Object obj) throws IOException { if (obj == null) { writeNull(); } else if (obj instanceof DERObject) { ((DERObject)obj).encode(this); } else if (obj instanceof DEREncodable) { ((DEREncodable)obj).getDERObject().encode(this); } else { throw new IOException("object not ASN1Encodable"); } } }