}

    @Test
    @DisplayName("remove() throws UnsupportedOperationException")
    void removeThrows() throws Exception {
        SmbFile parent = newParent();
        ShareEnumIterator it = new ShareEnumIterator(parent, Collections.<FileEntry> emptyList().iterator(), null);
        UnsupportedOperationException ex = assertThrows(UnsupportedOperationException.class, it::remove);
        assertEquals("remove", ex.getMessage());

    backingMap.setValue(entryIndex, (int) newCount);
    size += occurrences;
    return oldCount;
  }

  @CanIgnoreReturnValue
  @Override
  public final int remove(@Nullable Object element, int occurrences) {
    if (occurrences == 0) {
      return count(element);
    }
    checkArgument(occurrences > 0, "occurrences cannot be negative: %s", occurrences);

     * @return whether flag is set
     */
    public boolean isFlagSet(final int flag) {
        return (this.flags & flag) == flag;
    }

    /**
     * Remove flag
     *
     * @param flag the flag to remove
     */
    public void unsetFlag(final int flag) {
        this.flags &= ~flag;
    }

    /**
     * Set flag
     *
     * @param flag the flag to set
     */

    @Override
    @SuppressWarnings("unchecked")
    public boolean remove(@Nullable Object o) {
      if (o instanceof Entry) {
        Entry<?, ?> entry = (Entry<?, ?>) o;
        if (unfiltered.containsKey(entry.getKey())
            // if this holds, then we know entry.getKey() is a K
            && keyPredicate.apply((K) entry.getKey())) {
          return unfiltered.remove(entry.getKey(), entry.getValue());
        }
      }

    }
  }

  private static Set<Feature<?>> computeReserializedCollectionFeatures(Set<Feature<?>> features) {
    Set<Feature<?>> derivedFeatures = new HashSet<>(features);
    derivedFeatures.remove(SERIALIZABLE);
    derivedFeatures.remove(SERIALIZABLE_INCLUDING_VIEWS);
    return derivedFeatures;
  }

            }
            final int style = STYLES[index++];
            return DateFormat.getDateInstance(style, locale);
        }

        @Override
        public void remove() {
            throw new ClUnsupportedOperationException("remove");
        }

    }

    /**
     * {@link Iterator} that iterates over {@link DateFormat}s corresponding to the styles held by the locale.
     *
     * @author koichik

    }

    @Override
    public Indexed<T> next() {
        return new Indexed<>(iterator.next(), index++);
    }

    @Override
    public void remove() {
        throw new ClUnsupportedOperationException("remove");
    }

    }
  }

  private static Set<Feature<?>> computeReserializedCollectionFeatures(Set<Feature<?>> features) {
    Set<Feature<?>> derivedFeatures = new HashSet<>(features);
    derivedFeatures.remove(SERIALIZABLE);
    derivedFeatures.remove(SERIALIZABLE_INCLUDING_VIEWS);
    return derivedFeatures;
  }

  @JvmName("-deprecated_getHeaders")
  @Deprecated(
    message = "moved to var",
    replaceWith = ReplaceWith(expression = "headers"),
    level = DeprecationLevel.ERROR,
  )
  fun getHeaders(): Headers = headers

  fun setHeaders(headers: Headers) = apply { this.headers = headers }

  @JvmName("-deprecated_getTrailers")
  @Deprecated(
    message = "moved to var",
    replaceWith = ReplaceWith(expression = "trailers"),

        exception.expect(ClUnsupportedOperationException.class);
        exception.expectMessage(is("remove"));
        final Vector<String> vector = new Vector<String>();
        vector.add("a");
        final EnumerationIterator<String> itr = new EnumerationIterator<String>(vector.elements());
        itr.remove();
    }

    /**
     * @throws Exception
     */
    @Test