if (serviceReferences != null && serviceReferences.length > 0) {
for (ServiceReference ref : serviceReferences) {
Synchronizer synchronizer = (Synchronizer) bundleContext.getService(ref);
if (synchronizer != null && synchronizer.isSyncEnabled(group)) {
synchronizer.pull(group);
synchronizer.push(group);
}
bundleContext.ungetService(ref);
}
}
} catch (InvalidSyntaxException e) {