Payara Micro Features

Production-Ready Microservices for Jakarta EE

This guide provides a concise, technical overview of Payara Micro, the lightweight, cloud-native Jakarta EE runtime designed for modern microservices and containerized deployments.

Inside, you’ll learn how Payara Micro enables teams to build, deploy, and operate enterprise Java applications with minimal overhead—without sacrificing stability, observability, or standards compliance. The guide walks through Payara Micro’s core architecture, including its single-JAR “hollow jar” runtime model, built-in Eclipse MicroProfile support, and automatic clustering via an embedded data grid, allowing services to scale horizontally with zero manual configuration
Payara Micro Features.

You’ll also discover how Payara Micro supports cloud and Kubernetes environments, offering native health checks, metrics, request tracing, and monitoring integrations with tools like Prometheus, Grafana, Jaeger, and Zipkin. The guide covers messaging and event-driven communication, distributed caching, and advanced runtime configuration options that simplify operations across development, test, and production environments

Whether you’re modernizing legacy Java EE applications, building new microservices, or evaluating alternatives to heavyweight application servers, this guide explains how Payara Micro delivers enterprise-grade reliability with developer-friendly simplicity.

What you’ll gain from this guide

• A clear understanding of Payara Micro’s architecture and runtime model
• How MicroProfile APIs improve resilience, observability, and configuration
• Built-in clustering, caching, and messaging for distributed systems
• Cloud-native and Kubernetes-ready deployment patterns
• Operational features designed for production, not just development