Complex sentence: Apache ServiceMix is an open source distributed Enterprise service bus (ESB) and Service-Oriented Architecture SOA toolkit built from the ground up on the semantics and APIs of the Java Business Integration (JBI) specification JSR 208 and released under the Apache license.
Split into simpler sentences: Apache ServiceMix is an open source distributed Enterprise service bus (ESB) and Service-Oriented Architecture SOA toolkit. It was built from the ground up on the semantics and APIs of the Java Business Integration (JBI) specification JSR 208 and released under the Apache license.