I recently upgraded my application from Tomcat 8 to Tomcat 9 and am experiencing an issue with cookies not being cleared

Relevant Code:
Here’s how I’m handling the logout and cookie clearing:

Cookie cookie = new Cookie("UniToken", "");
cookie.setPath("/");
cookie.setMaxAge(0);
response.addCookie(cookie);

New Environment Details: Tomcat 9, JDK 8

Old Environment Details: Tomcat 8, JDK 8

Troubleshooting Done:

• Verified that the cookie path and other settings are identical in both environments.
• Checked Tomcat configurations (server.xml, context.xml, web.xml) and they are consistent across both environments.
• Added logs to track cookie values, which confirmed that the cookie should be cleared as specified.

Could this be related to Tomcat’s configuration when upgrading from Tomcat 8 to Tomcat 9 ?