servletContext.setSessionTrackingModes(
                    fessConfig.getSessionTrackingModesAsSet().stream().map(SessionTrackingMode::valueOf).collect(Collectors.toSet()));
        } catch (final Throwable t) {
            logger.warn("Failed to set SessionTrackingMode.", t);
        }

   * <p><b>Note:</b> if mutability is not required and the elements are non-null, use {@link
   * ImmutableSet#copyOf(Iterable)} instead. (Or, change {@code elements} to be a {@link
   * FluentIterable} and call {@code elements.toSet()}.)
   *
   * <p><b>Note:</b> if {@code E} is an {@link Enum} type, use {@link #newEnumSet(Iterable, Class)}
   * instead.
   *

HSPLkotlin/collections/CollectionsKt___CollectionsKt;->toMutableList(Ljava/util/Collection;)Ljava/util/List;
HSPLkotlin/collections/CollectionsKt___CollectionsKt;->toSet(Ljava/lang/Iterable;)Ljava/util/Set;
HSPLkotlin/collections/EmptyIterator;-><clinit>()V
HSPLkotlin/collections/EmptyIterator;-><init>()V
HSPLkotlin/collections/EmptyIterator;->hasNext()Z

    public String toString() {
        return "JDK[" + getJavaHome() + "]";
    }

    @Override
    public String findTool(String toolName) {
        Path toRet = findTool(toolName, Paths.get(getJavaHome()).normalize());
        if (toRet != null) {
            return toRet.toAbsolutePath().toString();
        }
        return null;
    }

    private static Path findTool(String toolName, Path installDir) {