Versatile Messaging Patterns
Supports point-to-point and publish/subscribe models
Virtual topics for combined messaging paradigms
Request-reply messaging with temporary destinations
Message groups for ordered processing
Retroactive consumers for historical message access
Hierarchical topic subscriptions with wildcards
Enterprise Integration
JMS 1.1 and 2.0 compliant interfaces
Support for AMQP, MQTT, STOMP, and OpenWire protocols
WebSockets for browser-based messaging
REST API for HTTP-based access
Camel integration for enterprise integration patterns
Spring Framework support for simplified configuration
High Availability
Master/slave broker configurations
Shared storage options for durability
Network of brokers for distributed deployments
Failover transport for automatic client reconnection
Message replication across brokers
Advisory topics for system event notifications
Message Persistence
Pluggable storage mechanisms (KahaDB, JDBC, LevelDB)
Transaction support with XA compliance
Message expiration and time-to-live controls
Persistent and non-persistent delivery options
Journal-based fast persistence
Message cursors for efficient consumption
Security Framework
JAAS authentication integration
Role-based authorization model
Destination-level security policies
Certificate-based authentication
Encrypted connections with SSL/TLS
Pluggable security adapters
Performance Optimization
Producer flow control mechanisms
Consumer prefetch limits
Optimized wire formats
Asynchronous dispatch options
Non-blocking I/O architecture
Memory management tuning capabilities
Messaging Reliability
Guaranteed message delivery options
Message acknowledgment patterns
Dead letter queuing for undeliverable messages
Individual and transaction-based acknowledgments
Redelivery policy configuration
Duplicate message detection
Advanced Features
Message selectors for content-based routing
Priority message queueing
Last-value queues for state synchronization
Composite destinations for message fanout
Delayed and scheduled message delivery
Message transformation and interception
Monitoring and Management
Web console for visual administration
JMX-based management and monitoring
Detailed statistics and metrics collection
Command-line administration tools
Audit logging capabilities
Performance advisories