Creating RESTful web services that effectively allow for data exposure in multiple formats while managing the complexities of client-server communication can be quite challenging without the right tools. To ease the process of building RESTful web services and their corresponding clients in Java, the JAX-RS API has been established as a standardized and portable solution. The Jersey framework for RESTful web services 3.x is an open-source, production-ready framework that supports Jakarta RESTful web services 3.0. Beyond merely serving as the JAX-RS reference implementation, Jersey offers its own API, enriching the JAX-RS toolkit with additional capabilities. It also ensures the JAX-RS API is consistently updated, delivering regular releases of high-quality reference implementations that integrate seamlessly with GlassFish. Furthermore, Jersey provides APIs that facilitate extensions, fostering a vibrant community of users and developers. As a result, developers find it significantly easier to create robust RESTful web services using Java and the Java Virtual Machine, paving the way for more innovative applications.