Retreive Build Result Activity programatically from Build Result

I would like to retrieve the Build Result Activity from the Build result from a given Build Definition.

And i have the below implementation to retrieve the Build result. But further from here, i need some hints to retrieve the build result activity. any hints would be of great help.

    String repoName = "MyRepositoryURL";
    String buildDefId = "MyBuildDefinitionID";
    try {
      ITeamRepository repo = TeamPlatform.getTeamRepositoryService().getTeamRepository(repoName);
      repo.login(new NullProgressMonitor());

      ITeamBuildClient buildClient = (ITeamBuildClient) repo.getClientLibrary(ITeamBuildClient.class);


      IBuildDefinition definition = buildClient.getBuildDefinition(buildDefId, monitor);

      // Build query for COMPLETED results of this definition
      IBuildResultQueryModel model = IBuildResultQueryModel.ROOT;
      IItemQuery query = IItemQuery.FACTORY.newInstance(model);
      query.filter(model.buildDefinition()._eq(query.newItemHandleArg())
          ._and(model.buildState()._eq(BuildState.COMPLETED.name())));
      query.orderByDsc(model.buildStartTime());

      // Fetch first page (limit to 10 results)
      IItemQueryPage page = buildClient.queryItems(query, new Object[] { definition.getItemId() }, 5,
//          IQueryService.ITEM_QUERY_MAX_PAGE_SIZE,
          monitor);

      // Convert handles to full results
      List<IBuildResultHandle> resultHandles = new ArrayList<>();
      for (Object o : page.getItemHandles()) {
        if (o instanceof IBuildResultHandle) {
          resultHandles.add((IBuildResultHandle) o);
        }
      }

      List<IBuildResult> results = repo.itemManager().fetchCompleteItems(resultHandles, IItemManager.REFRESH, monitor);

      for (IBuildResult result : results) {
        System.out.println(
            "Build: " + result.getLabel() + " | Status: " + result.getStatus() + " | State: " + result.getState());
      }
    }
    catch (Exception e) {
      e.printStackTrace();
    }