Jetty served JavaA portable language running on the JVM — dominant in enterprise servers, Android, and big data. servlets and JSPs without a full application server — embeddable in IDEs, appliances, and microservicesAn architecture splitting applications into small independent services — each deployed and scaled separately. decades before that term existed. It powered Eclipse, Google App EngineGoogle Cloud's managed platform for deploying web apps without provisioning servers manually., and countless integration tests. While Tomcat became the reference servlet containerAn isolated runtime environment packaging an app and its dependencies — lighter than full virtual machines., Jetty proved JavaA portable language running on the JVM — dominant in enterprise servers, Android, and big data. web stacks could stay small and embeddable.

Jetty was an early embeddable JavaA portable language running on the JVM — dominant in enterprise servers, Android, and big data. web server that outlived many heavyweight app servers.

It showed servlet containers did not require monolithic enterprise middlewareSoftware between applications and lower-level systems — handles integration, messaging, or shared services..