try {
            thumbnailQueueThread.join(10000);
        } catch (final InterruptedException e) {
            logger.warn("Thumbnail thread is timeouted.", e);
        }
        generatorList.forEach(g -> {
            try {
                g.destroy();
            } catch (final Exception e) {
                logger.warn("Failed to stop thumbnail generator.", e);
            }
        });
    }

fun readCapabilitiesFromJson() {
    val capabilitiesFile = repoRoot().file("gradle/dependency-management/capabilities.json").asFile
    val capabilities: List<CapabilitySpec> = readCapabilities(capabilitiesFile)
    capabilities.forEach {
        it.configure(dependencies.components, configurations)
    }
}

fun readCapabilities(source: File): List<CapabilitySpec> {
    JsonReader(source.reader(Charsets.UTF_8)).use { reader ->

      Dns { hostname ->
        val allAddresses = mutableListOf<InetAddress>()
        val allExceptions = mutableListOf<IOException>()
        val latch = CountDownLatch(asyncDns.size)

        asyncDns.forEach {
          it.query(
            hostname,
            object : Callback {
              override fun onResponse(
                hostname: String,
                addresses: List<InetAddress>,
              ) {

            stream(texts).of(stream -> stream.forEach(t -> context.addHighlightedQuery(t)));
            return buildDefaultQueryBuilder(fessConfig, context, (f, b) -> buildMatchPhraseQuery(f, text).boost(b * boost));
        }

        if (isSearchField(field)) {
            context.addFieldLog(field, text);
            stream(texts).of(stream -> stream.forEach(t -> context.addHighlightedQuery(t)));

                .let(transform)
        }

    override fun close() {
        val errors = mutableListOf<Exception>()
        openKotlinCompilationUnitsByRoot.values.forEach { unit ->
            try {
                unit.close()
            } catch (ex: Exception) {
                errors.add(ex)
            }
        }
        openJavaCompilationUnitsByFile.clear()

        BoolQueryBuilder boolQuery = QueryBuilders.boolQuery();
        mustList.forEach(query -> {
            boolQuery.must(query);
        });
        shouldList.forEach(query -> {
            boolQuery.should(query);
        });
        mustNotList.forEach(query -> {
            boolQuery.mustNot(query);
        });
        filterList.forEach(query -> {
            boolQuery.filter(query);
        });

    return map.containsKey(object);
  }

  @Override
  K get(int index) {
    return map.entrySet().asList().get(index).getKey();
  }

  @Override
  public void forEach(Consumer<? super K> action) {
    checkNotNull(action);
    map.forEach((k, v) -> action.accept(k));
  }

  @Override
  boolean isPartialView() {
    return true;
  }

  // redeclare to help optimizers with b/310253115

                builder.setQuery(queryBuilder);
            }
            _conditionQuery.getFieldSortBuilderList().forEach(sort -> {
                builder.addSort(sort);
            });
        }

        if (_conditionAggregation != null) {
            _conditionAggregation.getAggregationBuilderList().forEach(builder::addAggregation);
        }

        if (_specification != null) {

                builder.setQuery(queryBuilder);
            }
            _conditionQuery.getFieldSortBuilderList().forEach(sort -> {
                builder.addSort(sort);
            });
        }

        if (_conditionAggregation != null) {
            _conditionAggregation.getAggregationBuilderList().forEach(builder::addAggregation);
        }

        if (_specification != null) {

    if (cachesDir.isDirectory) {
        cachesDir.listFiles()
            .filter { it.isDirectory }
            .flatMap { scriptsCacheDirsUnder(it) }
            .forEach { scriptsCacheDir ->
                logger.lifecycle("Removing scripts cache directory : $scriptsCacheDir")
                delete { delete(scriptsCacheDir) }
            }
    }
}