Set<Feature<?>> derivedFeatures = copyToSet(multimapFeatures);
    if (!derivedFeatures.remove(CollectionFeature.SERIALIZABLE_INCLUDING_VIEWS)) {
      derivedFeatures.remove(CollectionFeature.SERIALIZABLE);
    }
    if (derivedFeatures.remove(MapFeature.SUPPORTS_REMOVE)) {
      derivedFeatures.add(CollectionFeature.SUPPORTS_REMOVE);
    }
    return derivedFeatures;
  }

    bimap.put(1, "one");
    bimap.put(2, "two");
    bimap.put(3, "three");
    Iterator<Integer> iterator = bimap.keySet().iterator();
    iterator.next();
    iterator.next();
    iterator.remove();
    iterator.next();
    iterator.remove();
    assertEquals(1, bimap.size());
    assertEquals(1, bimap.inverse().size());
  }

  @SuppressWarnings("IdentityHashMapBoxing") // explicitly testing IdentityHashMap

    bimap.put(1, "one");
    bimap.put(2, "two");
    bimap.put(3, "three");
    Iterator<Integer> iterator = bimap.keySet().iterator();
    iterator.next();
    iterator.next();
    iterator.remove();
    iterator.next();
    iterator.remove();
    assertEquals(1, bimap.size());
    assertEquals(1, bimap.inverse().size());
  }

  @SuppressWarnings("IdentityHashMapBoxing") // explicitly testing IdentityHashMap

   */
  void add(Range<C> range);

  /**
   * Removes the specified range from this {@code RangeSet} (optional operation). After this
   * operation, if {@code range.contains(c)}, {@code this.contains(c)} will return {@code false}.
   *
   * <p>If {@code range} is empty, this is a no-op.
   *
   * @throws UnsupportedOperationException if this range set does not support the {@code remove}
   *     operation
   */

		t.Fatal(err)
	}

	// Remove the object - to simulate the case where the disk was down when the object
	// was created.
	err = removeAll(pathJoin(disk.String(), bucket, object))
	if err != nil {
		t.Fatal(err)
	}

	// Checking abandoned parts should do nothing
	err = er.checkAbandonedParts(ctx, bucket, object, madmin.HealOpts{ScanMode: madmin.HealNormalScan, Remove: true})
	if err != nil {
		t.Fatal(err)

        } else {
            PROJECT_ID.remove();
            MDC.remove(KEY_PROJECT_ID);
        }
    }

    public static void setForkingProjectId(String forkingProjectId) {
        if (forkingProjectId != null) {
            FORKING_PROJECT_ID.set(forkingProjectId);
        } else {
            FORKING_PROJECT_ID.remove();
        }
    }

    public static void updateMdc() {

    assertFailsWith<IllegalStateException> {
      iterator.remove()
    }
  }

  @Test
  fun iteratorRemoveOncePerCallToNext() {
    set("a", "a1", "a2")
    val iterator = cache.snapshots()
    iterator.next().use {
      iterator.remove()
    }
    assertFailsWith<IllegalStateException> {
      iterator.remove()
    }
  }

  @Test

      TreeRangeMap.this.putAll(rangeMap);
    }

    @Override
    public void clear() {
      TreeRangeMap.this.remove(subRange);
    }

    @Override
    public void remove(Range<K> range) {
      if (range.isConnected(subRange)) {
        TreeRangeMap.this.remove(range.intersection(subRange));
      }
    }

    @Override
    public RangeMap<K, V> subRangeMap(Range<K> range) {

    assertEquals(INITIAL_COUNT, multiset.remove(KEY, 0));
  }

  public void testRemove_zeroFromNone() {
    when(backingMap.get(KEY)).thenReturn(null);

    assertEquals(0, multiset.remove(KEY, 0));
  }

  public void testRemove_nonePresent() {
    when(backingMap.get(KEY)).thenReturn(null);

    assertEquals(0, multiset.remove(KEY, 400));
  }

  public void testRemove_someRemaining() {

        Long transferred;
        synchronized (transfers) {
            transferred = transfers.remove(transferEvent.getResource());
        }
        if (transferred != null) {
            event.setTransferredBytes(transferred);
        }

        synchronized (artifacts) {
            artifacts.remove(transferEvent.getResource());
        }

        listener.transferCompleted(event);
    }

    @Override