Eclipse GlassFish: This Isn't Your Father's GlassFish

Summary

Eclipse GlassFish: This Isn’t Your Father’s GlassFish March 24, 2026 4 min read For years, developers and organizations have held certain beliefs about GlassFish, often based on their experiences with older versions. If you still think of GlassFish as a slow, unsupported, and purely for-development application server, it’s time to take a fresh look. At OmniFish, we’ve been working hard to change that perception since 2022. The Eclipse GlassFish of today, particularly from version 7.0 onwards, is a completely different platform, and we’re proud to show you what we’ve helped to build with the rest of the Eclipse GlassFish contributors. This article explores the key differences between the modern Eclipse GlassFish and its predecessor, Oracle GlassFish and older Eclipse GlassFish versions. We’ll show you how GlassFish has evolved into a robust, enterprise-grade platform with commercial support from our team at OmniFish, with frequent updates, and a strong commitment to modern Java standards and modern lightweight deployments. In short, this is no longer your father’s GlassFish. The Myth of the Unsupported, Non-Production Server One of the most persistent myths about GlassFish is that it’s not suitable for production environments and lacks commercial support. This might have been a valid concern in the past, but it is no longer true. Since 2022 and GlassFish 7.0, the landscape has changed dramatically. Eclipse GlassFish is now a production-ready, enterprise-grade platform with active community, frequent releases, and commercial support with enterprise guarantees from OmniFish, a company which is actively involved in the project and leads most of the development. We founded OmniFish because we believe in GlassFish’s potential as a modern, enterprise-ready application server. We’re committed to providing comprehensive long-term support for Eclipse GlassFish. Moreover, we actively steer the GlassFish project within the Eclipse Foundation, regularly adding new features and i...