code: final ServiceController<?> addAbsolutePathService(final ServiceTarget serviceTarget, final String pathName, final String path) {
          return AbsolutePathService.addService(pathName, path, serviceTarget);
      }
docs: Install a {@code Service<String>} for the given path.
  @param serviceTarget the service target associated with the management operation making this request. Cannot be {@code null}
  @param pathName  the name of the relevant path. Cannot be {@code null}
  @param path  the value of the path within the model. This is either an absolute path or
  the relative portion of the path. Cannot be {@code null}
  
  @return the service controller for the {@code Service<String>}