a new pre-release of morphium is available now V3.2.0Beta2. This one includes a lot of minor bugfixes and one big feature: Messaging now uses the Oplogmonitor when connected to a Replicaset. This means, no polling anymore and the system gets informed via kind of push!
This is also used for cache synchronization.
Release can be downloaded here: https://github.com/sboesebeck/morphium
The beta is also available on maven central.
This is still Beta, but will be released soon - so stay tuned