Estou trabalhando no JavaCard e desenvolvi um applet com o JCDE no Eclipse:

import javacard.framework.APDU;
import javacard.framework.Applet;
import javacard.framework.ISO7816;
import javacard.framework.ISOException;
import javacard.framework.Util;
import javacardx.framework.math.BigNumber;
import javacard.security.CryptoException;
import javacard.security.MessageDigest;

public class SignatureGPS extends Applet {
    public static final byte CLA = (byte) 0xB0;
    public static final byte INS = (byte) 0x00;

    private BigNumber s;
    private BigNumber x;
    private MessageDigest h;

    private SignatureGPS() {
        s = new BigNumber((short) 100);
        x = new BigNumber((short) 100);
        try {
            h = MessageDigest.getInstance(MessageDigest.ALG_SHA_256, false);
        } catch (CryptoException e) {
            if (e.getReason() == CryptoException.NO_SUCH_ALGORITHM){
            }
        }
    }


    public static void install(byte bArray[], short bOffset, byte bLength) throws ISOException {
        new SignatureGPS().register();
    }


    public void process(APDU apdu) throws ISOException {
        byte[] buffer = apdu.getBuffer();

        if (this.selectingApplet()) return;

        if (buffer[ISO7816.OFFSET_CLA] != CLA)
            ISOException.throwIt(ISO7816.SW_CLA_NOT_SUPPORTED);

        ...
 }

}

Mas quando inicio o JCWDE e o APDUTOOL, tenho os seguintes erros:

Java Card 2.2.2 APDU Tool, Version 1.3
Copyright 2005 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.
Opening connection to localhost on port 9025.
Connected.
powerup;
// Select the installer applet
0x00 0xA4 0x04 0x00 0x09 0xa0 0x00 0x00 0x00 0x62 0x03 0x01 0x08 0x01 0x7F;
// create SignatureGPS applet
0x80 0xB8 0x00 0x00 0xd 0xb 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x00 0x01 0x00 0x7F;Received ATR = 0x3b 0xf0 0x11 0x00 0xff 0x00 
CLA: 00, INS: a4, P1: 04, P2: 00, Lc: 09, a0, 00, 00, 00, 62, 03, 01, 08, 01, Le: 00, SW1: 90, SW2: 00
// select SignatureGPS applet
0x00 0xA4 0x04 0x00 0xb 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x00 0x01 0x7F;CLA: 80, INS: b8, P1: 00, P2: 00, Lc: 0d, 0b, 01, 02, 03, 04, 05, 06, 07, 08, 09, 00, 01, 00, Le: 00, SW1: 64, SW2: 44

E no Eclipse, o JCWDE diz

 Exception from the invoked install() method:public static void metispackage.SignatureGPS.install(byte[],short,byte) throws javacard.framework.ISOException

Alguém sabe o que está acontecendo de errado com o meuinstalar método? Eu pesquisei no google, mas não encontrei nada para resolver o meu problema :( SW1 = 64 SW2 = 44 indica que a criação do applet falhou, mas não sei por que ...