I have deployed the Unified push server (latest version, from master branch)
on wildfly 8 final. Everything seems to be normal,
except than when an app makes a registration (an android app installation),
there is the following exception thrown:

WARN [org.jboss.resteasy.core.ExceptionHandler] (default task-3) Failed
executing POST /registry/device:
org.jboss.resteasy.core.NoMessageBodyWriterFoundFailure: Could not find
MessageBodyWriter for response object of type:
org.jboss.aerogear.unifiedpush.model.InstallationImpl of media type:
application/octet-stream