How to deactivate jnativehook on demand?

If my understanding serves me correct jnativehook can be turned on and off with these two commands:

> GlobalScreen.removeNativeKeyListener(this); //this shuts it down
>
> GlobalScreen.addNativeKeyListener(this);//and this turns it back on again

by this logic the program below:

import org.jnativehook.GlobalScreen;
import org.jnativehook.NativeHookException;
import org.jnativehook.keyboard.NativeKeyEvent;
import org.jnativehook.keyboard.NativeKeyListener;

import java.util.Scanner; 
import java.util.logging.Level;
import java.util.logging.LogManager;
import java.util.logging.Logger;


public class GlobalKeyListenerExample implements NativeKeyListener {

public void nativeKeyPressed(NativeKeyEvent e) {


    System.out.println("Key Pressed: " + NativeKeyEvent.getKeyText(e.getKeyCode()));
    String s = NativeKeyEvent.getKeyText(e.getKeyCode());
    handle(s);
   



    Logger logger = Logger.getLogger(GlobalScreen.class.getPackage().getName());
    logger.setLevel(Level.OFF);


    logger.setUseParentHandlers(false);
    if (e.getKeyCode() == NativeKeyEvent.VC_ESCAPE) {
        try {
            GlobalScreen.unregisterNativeHook();
        } catch (NativeHookException ex) {
            ex.printStackTrace();
        }
    }
}



public void nativeKeyReleased(NativeKeyEvent e) {
}

public void nativeKeyTyped(NativeKeyEvent e) {
    System.out.println("Key Typed: " + NativeKeyEvent.getKeyText(e.getKeyCode()));
}






public void handle(String k) {
    if (k == "A") {//close nativeKeylistener and execute run()
        GlobalScreen.removeNativeKeyListener(this);
        run();
      
        run2();//turn keylistener back on
    }

}

public void run() {
    System.out.println("Hello there!");
    System.out.print("Write something, please: ");
    Scanner lukija = new Scanner(System.in);
    String str = lukija.nextLine();
    System.out.println("you wrote: "+str);
}

public void run2() {
    GlobalScreen.addNativeKeyListener(this);

}





public static void main(String[] args) {
    Logger logger = Logger.getLogger(GlobalScreen.class.getPackage().getName());
    logger.setLevel(Level.OFF);


    logger.setUseParentHandlers(false);
    try {
        GlobalScreen.registerNativeHook();
    } catch (NativeHookException ex) {
        System.err.println("There was a problem registering the native hook.");
        System.err.println(ex.getMessage());

        System.exit(1);
    }

    GlobalScreen.addNativeKeyListener(new GlobalKeyListenerExample());
}

}

It should print something like this, by my understanding.

kKey Pressed: K
Key Pressed: J
jKey Pressed: G
gKey Pressed: U
uKey Pressed: Y
yKey Pressed: T
tKey Pressed: H
hKey Pressed: V
vKey Pressed: B
bKey Pressed: N
nKey Pressed: H
hKey Pressed: G
gKey Pressed: A
Hello there!
Write: i am a robot
i am a robot

Instead i get this:

kKey Pressed: K
Key Pressed: J
jKey Pressed: G
gKey Pressed: U
uKey Pressed: Y
yKey Pressed: T
tKey Pressed: H
hKey Pressed: V
vKey Pressed: B
bKey Pressed: N
nKey Pressed: H
hKey Pressed: G
gKey Pressed: A
Hello there!
Write: i am a robot
i am a robot
Key Pressed: Backspace
Key Pressed: I
Key Pressed: Space
Key Pressed: A
Hello there!
Write: test
test
Key Pressed: M
Key Pressed: Space
Key Pressed: A
Hello there!
Write: test
test
Key Pressed: Space
Key Pressed: R
Key Pressed: O
Key Pressed: B
Key Pressed: O
Key Pressed: T
Key Pressed: Enter
Key Pressed: T
Key Pressed: E
Key Pressed: S
Key Pressed: T
Key Pressed: Enter
Key Pressed: T
Key Pressed: E
Key Pressed: S
Key Pressed: T

What happens is that nativehook keeps rergistering all the inputs even tho i have used the command

> GlobalScreen.removeNativeKeyListener(this);

and when i add it back it with run2(), the program goes through all the key presses i gave it while giving input(and the methods they invoke, in this case run() when "a" is pressed). Why this behavior?

You remove the key listener but that doesn't stop the library from logging keystrokes.

To stop logging you shall do:

GlobalScreen.unregisterNativeHook();