A Jakarta EE banking system featuring EJB Persistent Timers, Container-Managed Transactions & modular EAR architecture. Uses AOP Security Interceptors, IdentityStore & HttpAuthenticationMechanism for RBAC. Implements thread-safe Singleton beans, pessimistic locking & atomic rollbacks via "@ ApplicationException" for high-concurrency data integrity.
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Updated
Jan 11, 2026 - Java