Alternatives to Jetty

Jetty is a lightweight and highly scalable Java-based web server and servlet container. Key features of Jetty include support for the latest Java versions, WebSocket and HTTP/2 support, modular architecture, and low latency handling of dynamic content. However, some limitations of Jetty include complexity in configuration and setup for beginners and lack of extensive documentation compared to other web server options.

1. Apache Tomcat: Apache Tomcat is a widely used open-source web server and servlet container. Key features include easy integration with other Apache projects, extensive documentation, support for Java EE technologies, and a large active community. However, some may find Apache Tomcat to be less lightweight compared to Jetty.

2. Undertow: Undertow is a lightweight and high-performance web server designed for both blocking and non-blocking operations. Key features include flexible configuration options, WebSocket support, and seamless integration with JBoss AS. However, Undertow may have a steeper learning curve for beginners compared to Jetty.

3. NGINX: NGINX is a popular web server known for its high performance, scalability, and low resource consumption. Key features include reverse proxy capabilities, load balancing, and TLS/SSL termination. However, NGINX may require additional modules for certain functionality that Jetty offers out of the box.

4. WildFly: WildFly, formerly known as JBoss, is a robust and feature-rich Java application server. Key features include support for Java EE technologies, clustering capabilities, and a management console for easy administration. However, WildFly may be overkill for simpler web server needs compared to Jetty.

5. Resin: Resin is a fast and reliable Java-based application server and web container. Key features include clustering support, dynamic class reloading, and high-speed performance. However, Resin may have a smaller community and less extensive documentation compared to Jetty.

6. Caddy: Caddy is a modern web server with automatic HTTPS setup, HTTP/2 support, and easy configuration using Caddyfile. Key features include Let's Encrypt integration, reverse proxy capabilities, and on-the-fly TLS certificate generation. However, some advanced users may find Caddy's configuration options limiting compared to Jetty.

7. GlassFish: GlassFish is a robust and full-featured Java EE application server. Key features include support for the latest Java EE specifications, clustering capabilities, and a modular architecture. However, GlassFish may have higher resource requirements compared to Jetty for smaller-scale deployments.

8. Tomee: Apache TomEE is a lightweight and enterprise-ready Java EE application server built on top of Apache Tomcat. Key features include support for Java EE technologies, simplified configuration, and a small memory footprint. However, some users may find Apache TomEE to be less feature-rich compared to Jetty.

9. Grizzly: Grizzly is a lightweight framework for building scalable and performant web applications in Java. Key features include support for WebSocket, HTTP/2, and an event-driven architecture for high concurrency. However, Grizzly may require more manual configuration compared to the out-of-the-box functionality of Jetty.

10. Play Framework: Play Framework is a modern web framework for building reactive applications in Java and Scala. Key features include hot reloading, built-in testing support, and asynchronous request handling. However, Play Framework may have a different programming model compared to traditional web servers like Jetty.