Developing and deploying custom features
Starting with version 8.5.5, IBM WebSphere Application Server Liberty Profile supports direct enhancement of the runtime with user-defined features deployed in product extensions. Creating your own features allows you to customize or extend the behavior of the runtime using system programming interfaces (SPIs) that applications do not have access to. User-defined features can also provide additional application programming interfaces (APIs) and services to deployed applications.
This chapter walks through ...