# Servlet 6.1 API - Apache Tomcat® 11.0.13

Packages
Package
Description
jakarta.servlet
The jakarta.servlet package contains a number of classes and interfaces that describe and define the contracts between a servlet class and the runtime environment provided for an instance of such a class by a conforming servlet container.
jakarta.servlet.annotation
jakarta.servlet.descriptor
jakarta.servlet.http
The jakarta.servlet.http package contains a number of classes and interfaces that describe and define the contracts between a servlet class running under the HTTP protocol and the runtime environment provided for an instance of such a class by a conforming servlet container.