[tech2077]

I was trying to run the posted code in order to test out the serial port on our cRIO. The code faulted with a null pointer error due to the serial resource not being initialized and returning the error "VI_ERROR_RSRC_NFOUND in function viOpen"

import edu.wpi.first.wpilibj.IterativeRobot;
import edu.wpi.first.wpilibj.SerialPort;
import edu.wpi.first.wpilibj.visa.VisaException;

public class RobotTemplate extends IterativeRobot {
    
    public SerialPort serial;
    
    public void robotInit() {
    }
    public void autonomousInit() {
    }
    public void autonomousPeriodic() {
    }
    
    public void teleopInit() {
        try {
            serial = new SerialPort(115200);
        } catch (VisaException ex) {
            System.out.println("Error to initialize serial port at 115200 baud " + ex.getMessage());
        }
    }
    
    public void teleopPeriodic() {
        try {
            serial.print("test");
            System.out.println(serial.read(1));
        } catch (VisaException ex) {
            System.out.println("Error");
        }
    }
}