* @param envSupplier The environment supplier.
     * @return The directory context holder.
     */
    protected DirContextHolder getDirContext(final Supplier<Hashtable<String, String>> envSupplier) {
        DirContextHolder holder = contextLocal.get();
        if (holder != null) {
            holder.inc();
            return holder;
        }
        final Hashtable<String, String> env = envSupplier.get();

        ShellCommandRegistryHolder holder = new ShellCommandRegistryHolder();
        holder.addCommandRegistry(builtins);

        // gather commands
        Map<String, ShellCommandRegistryFactory> factories =
                context.lookup.lookupMap(ShellCommandRegistryFactory.class);
        for (Map.Entry<String, ShellCommandRegistryFactory> entry : factories.entrySet()) {

          try {
            // The cast is safe because tryAdvance puts a T into `holder`.
            action.accept(function.apply(uncheckedCastNullableTToT(holder), index++));
            return true;
          } finally {
            holder = null;
          }
        }
        return false;
      }

      @Override
      Splitr createSplit(Spliterator<T> from, long i) {

        final SmbAuthenticationHolder holder = new SmbAuthenticationHolder();
        final SmbAuthentication[] smbAuthentications =
                getInitParameter(SMB_AUTHENTICATIONS_PROPERTY, new SmbAuthentication[0], SmbAuthentication[].class);
        if (smbAuthentications != null) {
            for (final SmbAuthentication smbAuthentication : smbAuthentications) {
                holder.add(smbAuthentication);
            }

                if (logger.isDebugEnabled()) {
                    logger.debug("Adding SmbAuthentication: {}", smbAuthentication);
                }
                holder.add(smbAuthentication);
            }
        }
        smbAuthenticationHolder = holder;
    }

    @Override
    public void close() throws Exception {
        smbAuthenticationHolder = null;
        if (cifsContext != null) {

    checkNotNull(updaterFunction);
    AtomicLong holder = new AtomicLong();
    map.compute(
        key,
        (K k, @Nullable Long value) -> {
          long oldValue = (value == null) ? 0L : value.longValue();
          holder.set(oldValue);
          return updaterFunction.applyAsLong(oldValue);
        });
    return holder.get();
  }

  /**

  }

  @Keep
  private static class Holder<T> {
    List<T>[] matrix;

    void setList(List<T> list) {}
  }

  public void testWildcardCaptured_methodParameter_upperBound() throws Exception {
    TypeToken<Holder<?>> type = new TypeToken<Holder<?>>() {};
    ImmutableList<Parameter> parameters =
        type.method(Holder.class.getDeclaredMethod("setList", List.class)).getParameters();

        enterLocalPassiveMode = getInitParameter("enterLocalPassiveMode", false, Boolean.class);

        // Initialize FTP authentication holder
        final FtpAuthenticationHolder holder = new FtpAuthenticationHolder();
        final FtpAuthentication[] ftpAuthentications =
                getInitParameter(FTP_AUTHENTICATIONS_PROPERTY, new FtpAuthentication[0], FtpAuthentication[].class);

    ImmutableListMultimap.Builder<String, Integer> builder = new Builder<>();
    StringHolder holder = new StringHolder();
    holder.string = "one";
    Entry<String, Integer> entry =
        new AbstractMapEntry<String, Integer>() {
          @Override
          public String getKey() {
            return holder.string;
          }

          @Override
          public Integer getValue() {

    ImmutableMap.Builder<String, Integer> builder = new Builder<>();
    StringHolder holder = new StringHolder();
    holder.string = "one";
    Entry<String, Integer> entry =
        new AbstractMapEntry<String, Integer>() {
          @Override
          public String getKey() {
            return holder.string;
          }

          @Override
          public Integer getValue() {