Eclipse OpenJ9™ is a high performance, enterprise calibre, flexibly licensed, openly governed cross platform Java Virtual Machine (JVM) extending and augmenting the runtime technology components from

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Jakarta RESTful Web Services provides a specification document, TCK and foundational API to develop web services following the Representational State Transfer (REST) architectural pattern. JAX-RS

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Eclipse GlassFish® is a lightweight yet powerful open-source application server that fully implements the Jakarta EE platform. Designed for flexibility, scalability, and reliability, it provides a

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Jakarta Validation is a specification which lets you express constraints on object models via annotations lets you write custom constraints in an extensible way provides the APIs to validate objects

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The main goal of Jakarta RPC project is to make gRPC easier to use within Jakarta EE ecosystem, by allowing developers to define gRPC services and clients the same way they are defining REST services

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This project has been merged into the Eclipse GlassFish project Writing scalable server applications in the Java™ programming language has always been difficult. Before the advent of the Java New I/O

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Eclipse AQAvit™ is the quality and runtime branding evaluation project for Java SE runtimes and associated technology. During a release it takes a functionally complete Java runtime and ensures that

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Technology Compatibility Kit (TCK) for Jakarta EE platform. Used for testing Jakarta EE implementations for Jakarta EE spec compliance.

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The Jakarta EE Platform project produces the Jakarta EE Platform specification, which is an umbrella specification that aggregates all other Jakarta EE specifications. In addition, this Project is

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Eclipse ORB is a runtime component that can be used for distributed computing using IIOP communication.

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The Eclipse Temurin® project provides code and processes that support the building of runtime binaries and associated technologies that are high performance, enterprise-caliber, cross-platform, open

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Jakarta Model-View-Controller, or Jakarta MVC for short, is a common pattern in Web frameworks where it is used predominantly to build HTML applications. The model refers to the application’s data

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Eclipse Mission Control™ enables you to monitor and manage Java applications without introducing the performance overhead normally associated with these types of tools. It uses data collected for

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Eclipse Enterprise for Java (EE4J) is an open source initiative to create standard APIs, implementations of those APIs, and technology compatibility kits for Java runtimes that enable development

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Jakarta Messaging is a Java Message Oriented Middleware API for sending messages between two or more clients. It is a programming model to handle the producer-consumer messaging problem.

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The Eclipse Documentation for Jakarta EE project hosts documentation intended for programmers interested in developing and deploying Jakarta EE applications. It covers the technologies comprising the

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The MicroProfile® project is aimed at optimizing Enterprise Java for the microservices architecture. Many innovative "microservice" Enterprise Java environments and frameworks already exist in the

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Eclipse Open Message Queue (Eclipse OpenMQ™) is a complete message-oriented middleware platform, offering high quality, enterprise-ready messaging. Eclipse OpenMQ is included in GlassFish.

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The Eclipse Migration Toolkit for Java is a tooling project for assisting the Java version migration. The project provides static/dynamic tools and documents that support the migration of Java

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The Jakarta Persistence API is the Java API for the management of persistence and object/relational mapping in Jakarta EE and Java SE environments.

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