protected void delete(String group, String id) {
        synchronized (map) {
            map.get(group).remove(id);
        }
    }
protected void delete(String group, String id) {
        synchronized (map) {
            map.get(group).remove(id);
        }
    }
protected void delete ( String group , String id ) { synchronized ( map ) { map . get ( group ) . remove ( id ) ; } }
@warn method description missing
@warn parameter descriptions missing

@param group
@param id
@warn method description missing @warn parameter descriptions missing