docs: @SuppressWarnings("unchecked")
      protected void processInitialCollectorManagerServices() throws InvalidSyntaxException {
          ServiceReference<CollectorManager>[] servRefs = (ServiceReference<CollectorManager>[])
                          bundleContext.getServiceReferences(CollectorManager.class.getName(), null);
  
          if (servRefs != null) {
              for (ServiceReference<CollectorManager> servRef : servRefs) {
              	setCollectorManagerPipeline(servRef);
              }
          }
      }