I'm trying to upgrade my tomcat from 7 to tomcat 10 with open jdk 14. My application is a basic servlet application and not using any framework [duplicate]

I've included all the jars which are necessary for jakarta and compiled my files with latest jars. Still getting classcastexception. unable to load dispatcher servlet.

trying to upgrade from tomcat 7 to tomcat 10

org.apache.catalina.core.ApplicationContext.log Marking servlet [LoginServlet] as unavailable09-Apr-2024 15:46:00.830 SEVERE [http-nio-8080-exec-7] org.apache.catalina.core.StandardWrapperValve.invoke Allocate exception for servlet [LoginServlet]java.lang.ClassCastException: class com.vno.vendorportal.controllers.LoginServlet cannot be cast to class jakarta.servlet.Servlet (com.vno.vendorportal.controllers.LoginServlet is in unnamed module of loader org.apache.catalina.loader.ParallelWebappClassLoader @36f1046f; jakarta.servlet.Servlet is in unnamed module of loader java.net.URLClassLoader @4e515669)