Java Card

Where can I find this native library. I am using MacOS and have an Java Card Applet that loads fine using the new Simulator for APDU driving but when I come across usage of this class.

javacard.framework.Util.arrayFill

I get a link error at runtime. Yes, I am very familiar with JNI and have written plenty of native. Maybe someone can point me to the correct JAR though I do have the correct one.

A simple example below is provided and run

[Compile]

javac -cp .:jcardsim-3.0.5-20221215.062536-4.jar TestUtil.java

[Run]

java -cp .:jcardsim-3.0.5-20221215.062536-4.jar TestUtil

here

Exception in thread "main" java.lang.UnsatisfiedLinkError: 'short javacard.framework.Util.arrayFill(byte[], short, short, byte)'

at javacard.framework.Util.arrayFill(Native Method)

at TestUtil.main(TestUtil.java:12)

/****
javac -cp .:jcardsim-3.0.5-20221215.062536-4.jar TestUtil.java 
java -cp .:jcardsim-3.0.5-20221215.062536-4.jar TestUtil
****/
import javacard.framework.Util;

public class TestUtil {
 public static void main(String[] args) throws Exception {
    System.out.println("here");
    byte[] wrkBuff0 = new byte[100];
    short loffset = Util.arrayFill(wrkBuff0, (short)0, (short) 32, (byte) 0xFF);
    System.out.println("here2");
   }
}