How to Read Java Byte Array back into SAP xstring Table?

Question

Hi Guys,
I have a situation whereby a user can upload a document in a WebDynpro Java Application.  This needs to be saved.  I am trying to see if I can make the location of this file that is being saved to be on our SAP AS.  I have written a SAP RFC that is imported into the Java Application for use.
The RFC is expecting a table of type TBL1024 which is basically a table of xstring values.  The Java proxy interprets this SAP table as a byte array.  This is my problem... I cannot seem to "break" up the Byte array into lines of 1024 lengt and send it back to SAP.  All that is happening currently is that the byte array creates a singe line in the TBL1024 that consists of only the first 1024 bytes in the array...  This means that only the first 1024 bytes of my document is being saved - making it corrupt.
Please advise,
Kind regards,
Christiaan

Answer 1

Loop it...
File file = new File("java.pdf");
FileInputStream fis = new FileInputStream(file);
byte[] buf = new byte[1024];
        try {
            for (int readNum; (readNum = fis.read(buf)) != -1;) {
                // Here populate the RFC table               
        } catch (IOException ex) {