code: private List<String> filterSourcelist(List<String> sourceList) {
          List<String> filteredList = new ArrayList<String>(sourceList);
          filteredList.remove(CollectorConstants.TRACE_CONFIG_VAL);
          filteredList.remove(CollectorConstants.MESSAGES_CONFIG_VAL);
          return filteredList;
      }
docs: /*
  Helper method to clean up the original source list by removing messages and
  trace from it. Otherwise, our json handlers will subscribe these and cause
  collectorManager to create 'new' conduits/Buffermanagers.