code: public ApplicationSummary getApplication(String brooklynId) throws IOException {
          Invocation invocation = getJerseyClient().target(getEndpoint() + "/v1/applications/" + brooklynId).request().buildGet();
          return invocation.invoke().readEntity(ApplicationSummary.class);
      }
docs: Creates proxied HTTP GET request to Apache Brooklyn which returns the details about a particular hosted application
  
  @param brooklynId of the desired application to fetch. This ID may differ from SeaClouds Application ID
  @return ApplicationSummary