Java - unresolved compilation problem (JAVA)

JWpackage Pkg01;

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

/* Como debería funcionar y qué se espera:

 * Ingresar por consola un código de dos caracteres:

 * Los correctos pueden ser "AH" o "JW"

 *El sistema debería mostrar en consola los datos del empleado correspondiente al código

 */

public class Employee01 {

	String name;

	int age;

	String designation;

	double salary;

	// -------------

	// This is the constructor of the class Employee

	public Employee01(String name) {

		this.name = name;

	}

	// Assign the age of the Employee to the variable age.

	public void empAge(int empAge) {

		age = empAge;

	}

	/* Assign the designation to the variable designation. */

	public void empDesignation(String empDesig) {

		designation = empDesig;

	}

	// Assign the salary to the variable salary.

	public void empSalary(double empSal) {

		salary = empSal;

	}

	/* Print the Employee details */

	public void printEmployee() {

		System.out.println("name  : " + name);

		System.out.println("age :" + age);

		System.out.println("designation  : " + designation);

		System.out.println("salary :" + salary);

	}

	// -----------

	// call constructor to initialize objects as follows:

	public static void main(String args[])  throws IOException {

		   //Notar que readLine() nos obliga a declarar IOException

	        BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); //Ya tenemos el "lector"

	        System.out.println("Ingrese codigo de dos letras en MAYUSCULA");//Se pide un dato al usuario

	        String codalfabetico = br.readLine(); //Se lee el nombre con readLine() que retorna un String con el dato

	        switch (codalfabetico) {

	   	        case "AH":

	   	        Employee01 empThree = new Employee01("Anne Hamerson");

	        	empThree.empAge(26);

	        	empThree.empDesignation("Senior Software Engineer");

	        	empThree.empSalary(1000);

	        	empThree.printEmployee();

	        	break;

	   	        case "JW": Employee01 empFour = new Employee01("James Witoquin");

	          empFour.empAge(21);

		      empFour.empDesignation("Software Engineer");

		      empFour.empSalary(500);

		      empFour.printEmployee();

		      break;

	        default: System.out.println("El código no corresponde a un empleado");

			System.out.println(codalfabetico);

		    }

}

}

/*---------------------------------------

La version de java en uso es:

java version "1.8.0_221"

Java(TM) SE Runtime Environment (build 1.8.0_221-b11)

Java HotSpot(TM) 64-Bit Server VM (build 25.221-b11, mixed mode)

Al hacer run as java apllication el mensaje es:

Exception in thread "main" java.lang.Error: Unresolved compilation problem:

*/