JAX-RS generic providers, authenticators and logging filters, an auto-returning pool implementation based on Apache Commons Pooling, a wrapper around Apache Commons Configuration, various assertions for JSON and XML, a Read-Multi-Write lock, Hamcrest Matchers extensions for streams, and many other utilities for handling text, streams, lists, maps, etc. In addition, provides an AWS Cognito SRP filter for JAX-RS and a CLI for it.