Accessing a Static Array in one CAP file from another CAP in same project

Question

Hi all,
I have been developing a banking application on JavaCard. So the size of the applet has grown size able and have now split the file to multiple CAP files. I have been using NXP JCOP plugin in Eclipse for development. Below are the steps done
a.) I have created multiple packages under the same project where one project has all the variable which are public static final and don't reference any other class. Also this package does not extend Applet. So it finally generates to a CAP file.
b.) Another package which imports the above package and also extend Applet is the one which has all the UI and logic related to the project. The applet uses the static array defined in the another package to show the menu on phone.
Now the problem is that when the code come to point for fetching the menu data, i have some thing like menu.length . But when the code comes to this point in debugger i get a
+6F 00    Status: No precise diagnosis.+
To cross check i put a watch on the menu variable and found that it has all the data required for showing the menu (which is of 32 byes). So now i am perplexed on why this length is giving this problem. Am i doing some thing wrong. Below is the Snip of the larger code
This code is the package which has all the constants..
package constantsPack;
import javacard.framework.APDU;
import javacard.framework.ISO7816;
import javacard.framework.JCSystem;
import javacard.framework.Util;
public class ConstantsApplet {
//menu array decleration
public static final byte[] MAIN_SETUP_MENU = {
                   (byte) 0x81,  ConstantsApplet.CMD_DTL_LENGTH, ConstantsApplet.CMD_NUMBER, ConstantsApplet.MAIN_CMD_SET_UP_MENU, (byte) 0x00,
                   (byte) 0x82, (byte) 0x02, ConstantsApplet.DEVICEID_SIM, ConstantsApplet.DEVICEID_ME,
                   (byte) 0x85, (byte) 0x08 ,'A','B', 'C',' ','A','p','p','s',
                   (byte) 0x8F, (byte) 0x0D, ConstantsApplet.SB_MENU, 'A','b','c','d','e','f','g',' ','B','a','n','k',
// other constants.
}This is the package which has the applet and which uses the variables of the above package
package myPkgLib;
import constantsPack.*;
import javacard.framework.APDU;
import javacard.framework.Applet;
import javacard.framework.ISO7816;
import javacard.framework.ISOException;
import javacard.framework.OwnerPIN;
import javacard.framework.Util;
import javacard.framework.JCSystem;
public class myApplet extends Applet{
// other code
fetch(ConstantsApplet.MAIN_SETUP_MENU.length);
}Any help regarding this would be very helpful...
Regards
Prakash
Edited by: prakash on Apr 18, 2012 11:57 PM

Answer 1

Hi lexdabear,
I tried putting a function inside the library package where the static array is present, but the results are the same... Also by try catch . what exception you want to catch... i see Exception has just .equal function... Tried with ExternalException also but does not seem to enter it..
Attaching the source code compilable in eclipse below ..
package constantsPack;
public class ConstantsApplet {
     public static final byte[] MAIN_SETUP_MENU = {
          (byte) 0x81, (byte) 0x03, (byte) 0x01, (byte) 0x25, (byte) 0x00,
          (byte) 0x82, (byte) 0x02, (byte) 0x81, (byte) 0x82,
          (byte) 0x85, (byte) 0x08 ,'A','B', 'C',' ','A','p','p','s',
          (byte) 0x8F, (byte) 0x0D,  0x0F, 't','e','s','t','a','p','p',' ','B','a','n','k',
          public ConstantsApplet ()
}The applet code where the above static array is used..
package smilePkgLib;
import constantsPack.*;
import javacard.framework.APDU;
import javacard.framework.Applet;
import javacard.framework.ISOException;
import javacard.framework.Util;
public class BLApplet extends Applet{
     short fetchcode =0;
     public static void install(byte[] bArray, short bOffset, byte bLength) {
          // GP-compliant JavaCard applet registration
          new smilePkgLib.BLApplet().register(bArray,
                    (short) (bOffset + 1), bArray[bOffset]);
     private BLApplet(){
          // put init code
      * The main method.
     public void process(APDU apdu) throws ISOException {
          if (selectingApplet()) {
               return;
          byte choosenMenuItem = 0;
          byte[] buf = apdu.getBuffer();
          byte bytesRead =(byte)(apdu.setIncomingAndReceive());
          fetchList(ConstantsApplet.MAIN_SETUP_MENU , (byte)0x00);
     private void fetchList(byte[] list, byte command){
          shouldFetch(list);
      * Overloaded method to fetch the MENUs only.     
      * @param menu
     private void shouldFetch(byte[] menu) {
          shouldFetch((byte)menu.length);
     private void shouldFetch(byte len) {
               fetchcode = Util.makeShort((byte) 0x91, (byte) (len));          
}The JCOP script to run the above project
/select |DefaultApplet
# Terminal Profile
/send A0100000133B67FF7F1F020F0B4100000000869804000000 Have the eclipse loadable project but dont know how to put here...
Regards
prakash.