Use a default configuration for the oak fixture in launchpad/testing This will be picked up by both runmodes ( jackrabbit and oak ) but in practice there is no side-effect and the config does not seem to be picked up if I place it under src/main/config/oak.
sling/trunk/launchpad/testing/src/main/config/org.apache.jackrabbit.oak.plugins.segment.SegmentNodeStoreService.cfg