You can use AMFConnection in BlazeDS to make remoting calls from Java to
BlazeDS/LCDS. The load testing tool in LCDS (lives under
resources/load-testing-tool) has Java APIs for Producer, Consumer,
ChannelSet, RemoteObject etc. that you can use as well, although it's
not a full Java API (not 100% complete as Actionscript API) yet.