SOLVED: Java in windows System.console() returns null

Error Message

Exception in thread "main" java.lang.NullPointerException: Cannot invoke "java.io.Console.readPassword(String, Object[])" because the return value of "java.lang.System.console()" is null
	at hello.Lautturi.main(Lautturi.java:108)

Java Code

/**
 * @author lautturi.com 
 * Java example: get/hide password on console / replace password with asterisk in java console
 */

import java.util.*;

public class Lautturi {
	public static void main(String[] args)  {
		char[] passwordArray = System.console().readPassword("Please enter the password:");
        for (int i = 0; i < passwordArray.length; i++) {
            System.out.print("*");
        }
        System.out.println();
        
		String password = new String(passwordArray);
		System.out.println(password);
	}
}

Cause

There's no console if we use javaw.exe instead of java.exe

Solution

use java.exe

F:\java\hello\bin>"F:\Program Files\Java\jdk-19\bin\java.exe" hello.Lautturi
Please enter the password:

lautturi

instead of

F:\java\hello\bin>"F:\Program Files\Java\jdk-19\bin\java.exe" hello.Lautturi
F:\java\hello\bin>