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.
If you can please elaborate your thoughts more it will be helpful to me to take certain decisions.
If you can provide some reference or pointer or example on this specific topic that would be great too!
Any Adobe personnel from LiveCycle Data Services Team pl. reply?
This page shows a simple example of using the Java AMF client to call a Remoting Service destination. It is the example at the end of the page.