Asn.1 development tools, CDR convert to XML using Java

Question 1

This question is best asked of the vendor of the ASN.1 Tool you are using. Another possibility is to try other ASN.1 Tools such as one of those listed at the ITU-T ASN.1 Project page (http://www.itu.int/ITU-T/asn1/links/index.htm). There is also the free online ASN.1 Compiler and Encoder/Decoder you could try at http://asn1-playground.oss.com. This free online tool can give you a detailed analysis of your CDR to give you an idea of what is wrong.

Question 2

The CDR file is not exactly in ASN.1 encoding format, there are spaces (ASCII 32) between records. One workaround is detect and filter out these spaces every time a record is decode, like the code sample here:

        byte[] content = FileUtils.readFileToByteArray(new File("CDR1"));
        ByteBuffer buffer = (ByteBuffer) Buffer.wrap(content, EncodingRules.BASIC_ENCODING_RULES);

        CDMACallDataRecords records = new CDMACallDataRecords();
        try {
            while (buffer.hasRemaining()) {
                CDMACallDataRecord ccdr = (CDMACallDataRecord) CDMACallDataRecord.TYPE.decode(buffer, CDMACallDataRecord.CONVERTER);
                records.records.add(ccdr);

                if (buffer.hasRemaining()) {
                    byte b = buffer.getByte();
                    while (b == 32 && buffer.hasRemaining()) {
                        b = buffer.getByte();
                    }
                    if (b != 32) {
                        buffer.position(buffer.position() - 1);
                    }
                }

            }
        } catch (Exception e) {
            e.printStackTrace();
            System.out.println(buffer.remaining());
        }

This error is not specified to ASN.1 encoding, so it is not ASN.1 Tools related.