%entities; ]> Introduction The Java Broker is a powerful open-source message broker that implements all versions of the Advanced Message Queuing Protocol (AMQP). The Java Broker is actually one of two message brokers provided by the Apache Qpid project: the Java Broker and the C++ Broker. This document relates to the Java Broker. The C++ Broker is described separately. Headline features 100% Java implementation - runs on any platform supporting Java 1.6 or higher Messaging clients support in Java, C++, Python. JMS 1.1 compliance (Java client). Persistent and non-persistent (transient) message support Supports for all common messaging patterns (point-to-point, publish/subscribe, fan-out etc). Transaction support including XA XA provided when using AMQP 0-10 Supports for all versions of the AMQP protocol Automatic message translation, allowing clients using different AMQP versions to communicate with each other. Pluggable authentication architecture with out-of-the-box support for Kerberos, LDAP, External, and file-based authentication mechanisms. Pluggable message store architecture with implementations based on Apache Derby, Oracle BDB JE Oracle BDB JE must be downloaded separately. , and Memory Store Web based management interface and programmatic management interfaces via REST and JMX APIs. SSL support High availability (HA) support. HA currently only available to users of the optional BDB JE HA based message store.