Servlet Containers

Servlet Containers are software components that provide a runtime environment for Java servlets and JavaServer Pages (JSP). They manage the lifecycle of servlets, handle requests from clients, and provide various other services that servlets require to function properly.

Some popular examples of servlet containers include:

1. Apache Tomcat - Tomcat is a widely used open-source servlet container developed by the Apache Software Foundation. It supports the latest Java Servlet and JSP specifications, and provides a lightweight, high-performance runtime environment for web applications.

2. Jetty - Jetty is another popular open-source servlet container that is known for its scalability and high-performance capabilities. It is used by many large web applications, including Google and Yahoo.

3. IBM WebSphere - WebSphere is a commercial servlet container developed by IBM. It provides a rich set of features for enterprise web applications, including support for clustering, load balancing, and security.

4. Oracle GlassFish - GlassFish is an open-source servlet container that is part of the Java EE platform. It provides a complete application server environment that includes support for Java EE technologies such as EJB and JMS.

5. JBoss EAP - JBoss Enterprise Application Platform is a commercial servlet container developed by Red Hat. It is based on the open-source WildFly project, and provides a scalable and secure runtime environment for Java web applications.

These servlet containers provide a variety of features and services that make it easy to deploy and manage Java web applications. They can handle a large number of simultaneous requests, provide load balancing, and offer advanced security features to protect web applications from attacks.