Apache Synapse 1.0
Synapse is an ESB engine and XML router built completely on open standards. It is a mediation framework for XML messages and Web services that allows messages flowing through, into, or out of an organization to be mediated, including aspects such as logging, service lookup, performance mediation, versioning, failover, monitoring, fault management, and tracing.
Significant improvements including non-blocking HTTP and HTTPS transports, better samples, and better documentation.
URL: Apache Synapse - Apache Synapse