Oracle Forms: cookies.getCookie() is returning null value when using Cookies.jar

Migrating Oracle Forms application from 10.1.2.0.2 to 12.2.1.4.0

The application uses Java programs. I am currently setting up the development environment in windows 11

I did the steps as per Doc ID 1072659.1 , the error FRM-92090 is not popup.

But the following codes are in forms is not working

+++

LV_PROXY := cookies.getCookie('ctrl_cookie.cookie_bean', 'mciblive');

+++

+++

FUNCTION getCookie(beanarea varchar2, cookiename varchar2)RETURN VARCHAR2 IS

BEGIN

SET_CUSTOM_PROPERTY (beanarea,1,'GETCOOKIE_NAME',cookiename);

return GET_CUSTOM_PROPERTY (beanarea,1,'GETCOOKIE');

END;

+++

LV_PROXY is returning null value.