Hey, [ sorry for breaking the threading, as I have just subscribed. ] I did not submit the build.gradle in order to replace the maven build, but as an addition as this can just easily build .aar files. In addition it is the default build format by Android Tools + Android Studio While the new Android tooling still has some kinks, Gradle itself is stable and e.g. (some part of) Hibernate is using it for some time now. So I could imagine to just continue building as is and afterwards running "gradle build" to also get an aar library build. Heiko -- Reg. Adresse: Red Hat GmbH, Technopark II, Haus C, Werner-von-Siemens-Ring 14, D-85630 Grasbrunn Handelsregister: Amtsgericht München HRB 153243 Geschaeftsführer: Mark Hegarty, Charlie Peters, Michael Cunningham, Charles Cachera