[INTERNAL] removed adapter stuff from business logic

It is always a "pleasure" to see how an API is sometimes
misused. The members method already returns the desired objects. Seems
the developer who wrote those lines was not of the Arrays.asList method.

Change-Id: Ide2d9dd2558cc54fa1760a64a7d41634c13ad352
Reviewed-on: http://saros-build.imp.fu-berlin.de/gerrit/1263
Tested-by: Jenkins CI
Reviewed-by: Stefan Rossbach <srossbach@arcor.de>