// create the db shell first (before test injector creation) to avoid db4o
// file lock when objectcontainer is instantiated
final Config cfg = getConfig();
final Injector i = buildInjector(new TestDb4oDaoModule(cfg), new Db4oDbShellModule() );
final IDbShell dbs = i.getInstance(IDbShell.class);
dbs.drop();
dbs.create();
super.beforeClass();
}