code: @Override
    @Nonnull
    public List<Sdk> selectSdks(Configuration configuration, UsesSdk usesSdk) {
      Config config = configuration.get(Config.class);
      Set<Sdk> sdks = new TreeSet<>(configuredSdks(config, usesSdk));
      if (enabledSdks != null) {
        sdks = Sets.intersection(sdks, enabledSdks);
      }
      return Lists.newArrayList(sdks);
    }
docs: Enumerate the SDKs to be used for this test.
  
  @param configuration a collection of configuration objects, including {@link Config}
  @param usesSdk the {@link UsesSdk} for the test
  @return the list of candidate {@link Sdk}s.
  @since 3.9