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WildFly

WildFly is an open-source Java application server (enterprise application platform) for running Jakarta EE and related enterprise Java workloads.

  • Implements Jakarta EE specifications for enterprise Java applications (application platform).
  • Provides a modular, lightweight runtime for deploying and managing Java applications (runtime platform).
  • Supports web, Representational State Transfer (REST), messaging, transaction, and persistence services under Jakarta EE (enterprise middleware).
  • Includes management, configuration, and administration via Command-Line Interface (CLI), web console, and configuration files (operations and management).
  • Integrates with Red Hat JBoss Enterprise Application Platform as its upstream community project (enterprise platform ecosystem).

More About WildFly

WildFly is an open-source Java application server (application platform) focused on running Jakarta EE enterprise applications and related Java workloads. It serves as the community upstream for Red Hat JBoss Enterprise Application Platform and targets organizations that build and operate standards-based Java applications. The project centers on compliance with Jakarta EE specifications, providing a runtime environment for web applications, enterprise services, and APIs that align with the Jakarta EE platform.

The server delivers a modular and Service Oriented Architecture (SOA) (runtime platform) in which subsystems are activated only when required by deployed applications. This design supports deployment of applications that use web containers, enterprise messaging, transactions, security, and persistence. WildFly implements Jakarta EE web technologies such as servlets and Jakarta RESTful Web Services (web and Application Programming Interface (API) services), along with enterprise components like Jakarta Enterprise Beans and Contexts and Dependency Injection (enterprise middleware). It also supports Jakarta Persistence for database access and Jakarta Transactions for distributed transaction handling (data and transaction management).

For operations teams, WildFly provides multiple management interfaces (operations and management). Administrators can configure and monitor servers using a CLI, a web-based management console, and XML configuration files. The server supports domain mode for managing multiple server instances in a coordinated way, as well as standalone mode for single-instance deployments (infrastructure management). Features such as logging, security realms, and datasources are managed centrally, enabling repeatable configuration across environments.

In enterprise environments, WildFly is deployed in data centers, private clouds, and containerized platforms as the runtime for business applications written in Java (enterprise application hosting). It aligns with Java and Jakarta EE standards, which supports portability of applications between compatible runtimes. Organizations commonly use WildFly to host APIs, transactional back-end services, and web front ends, integrating with databases, messaging systems, and identity providers.

WildFly is extensible through subsystems and modules (extensibility and ecosystem). The server exposes extension points for adding or replacing components such as security frameworks, logging handlers, or custom subsystems. As the upstream of Red Hat JBoss EAP, WildFly participates in a broader ecosystem of tools for build pipelines, monitoring, and container orchestration. Within a technical directory, WildFly fits into categories such as Java application servers, Jakarta EE runtimes, and enterprise middleware platforms, supporting enterprises standardizing on Java-based application architectures.