bluecove and sony ericsson connection problem

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Java

I'm using Bluecove to send files to mobile .. my code work fine with nokia phones but with sony ericsson i get stuck at the file sending ... it doesnt start .. the phone shows bluetooth activity but it never ask to confirm the connection ...I'm honestly not sure where it goes wrong

 public class send   implements Runnable {
        private String filename ;
        private byte[] file;
        private String btconnectionurl;
    public send(String filename, byte[] file, String btconnectionurl) {
        this.filename = filename;
        this.file = file;
        this.btconnectionurl = "btgoep://"+btconnectionurl + ":9";

    }
    public void run() {
        //com.intel.bluetooth.BlueCoveImpl.setConfigProperty("bluecove.connect.timeout", "5000");
        // com.intel.bluetooth.BlueCoveImpl.setConfigProperty("bluecove.obex.timeout", "3000");
         com.intel.bluetooth.BlueCoveImpl.setConfigProperty("bluecove.obex.mtu", "3840");
         try{
            Connection Con = (Connection) Connector.open(btconnectionurl,javax.microedition.io.Connector.READ_WRITE,true);
            ClientSession clientsession = (ClientSession) Con ;//nector.open(btconnectionurl,javax.microedition.io.Connector.READ_WRITE,true);
            HeaderSet header = clientsession.createHeaderSet();
          
            header.setHeader(HeaderSet.NAME, filename);
            header.setHeader(HeaderSet.TYPE, "text");
            header.setHeader(HeaderSet.LENGTH, new Long(file.length));
            clientsession.connect(header);
            Operation putOperation = clientsession.put(header);

            OutputStream outputStream = putOperation.openOutputStream();
            outputStream.write(file);
            outputStream.close();
            putOperation.close();
            clientsession.disconnect(null);
            

        } catch (Exception ex) {
            Logger.getLogger(send.class.getName()).log(Level.SEVERE, null, ex);
        }
    }
}com.intel.bluetooth.BlueCoveImpl.setConfigProperty("bluecove.connect.timeout", "5000");
        // com.intel.bluetooth.BlueCoveImpl.setConfigProperty("bluecove.obex.timeout", "3000");
         com.intel.bluetooth.BlueCoveImpl.setConfigProperty("bluecove.obex.mtu", "3840");
         try{
            Connection Con = (Connection) Connector.open(btconnectionurl,javax.microedition.io.Connector.READ_WRITE,true);
            ClientSession clientsession = (ClientSession) Con ;//nector.open(btconnectionurl,javax.microedition.io.Connector.READ_WRITE,true);
            HeaderSet header = clientsession.createHeaderSet();
             ////this area need fliping
            header.setHeader(HeaderSet.NAME, filename);
            header.setHeader(HeaderSet.TYPE, "text");
            header.setHeader(HeaderSet.LENGTH, new Long(file.length));
            clientsession.connect(header);
            Operation putOperation = clientsession.put(header);

            OutputStream outputStream = putOperation.openOutputStream();
            outputStream.write(file);
            outputStream.close();
            putOperation.close();
            clientsession.disconnect(null);
            

        } catch (Exception ex) {
            Logger.getLogger(send.class.getName()).log(Level.SEVERE, null, ex);
        }