private final void removeResourceGroups(AuthzSubject subject, Collection<ResourceGroup> groups) { for (ResourceGroup group : groups) { try { resourceGroupManager.removeResourceGroup(subject, group.getId()); } catch (Exception e) { log.error("Unable to remove group: " + e, e); } } if (log.isDebugEnabled()) { log.debug("Removed " + groups.size() + " resource groups"); } }