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Eclipse Exousia

Eclipse Exousia is a Java authorization library that provides Role-Based Access Control (RBAC) and permission checking for applications in the Eclipse Enterprise for Java (EE4J) ecosystem.

  • Declarative security enforcement for Java applications (identity and access)
  • RBAC and permission evaluation (identity and access)
  • Integration with Jakarta EE security models and containers (enterprise application platforms)
  • APIs for programmatic authorization checks in application code (application security)
  • Component within the EE4J umbrella under the Eclipse Foundation governance model (open-source governance)

More About Eclipse Exousia

Eclipse Exousia is an authorization library in the Eclipse Enterprise for Java (EE4J) family that focuses on access control and permission evaluation for Java-based enterprise applications. It addresses the problem space of enforcing security constraints in a consistent way across application components, typically in Jakarta EE or related environments, where roles, permissions, and security policies must be expressed and checked both declaratively and programmatically.

The project provides capabilities in the area of declarative security (identity and access), enabling applications to define access rules based on roles and permissions. These rules can be applied to resources, operations, or application endpoints, allowing a container or framework to determine whether a given user or security principal is authorized to perform an action. Exousia supports RBAC (identity and access), where roles are mapped to users and permissions, and authorization decisions are evaluated at runtime by the library or integrating container.

Within the EE4J ecosystem (enterprise application platforms), Eclipse Exousia is positioned as an authorization component that can be used by Jakarta EE-compatible runtimes or other Java application servers to implement security checks. It offers APIs for programmatic authorization (application security), enabling developers to invoke permission checks directly from application code, in addition to any annotations or deployment descriptors that define security constraints declaratively. This dual approach supports a range of security models where some policies are configured externally while others are enforced in code.

Exousia interacts with Jakarta EE security concepts (enterprise application platforms), such as security roles and principals, but is itself focused on the authorization layer rather than authentication. It can be integrated into architectures where identity is provided by external identity providers or containers, and where Exousia evaluates whether the identified subject has the required roles or permissions to access protected resources. This makes it relevant for modular enterprise systems that separate authentication, identity management, and authorization.

From a categorization perspective, Eclipse Exousia belongs in the identity and access management and application security categories. It can underpin authorization logic in enterprise Java platforms, microservices running on Jakarta EE-compatible runtimes, or other EE4J-aligned projects. Its role is to provide a consistent authorization core that can be reused across different containers or frameworks governed by the Eclipse Foundation, contributing to interoperability and uniform behavior for access control within the EE4J family.